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Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Manufacturer supply CAS 126-29-4 with best quality

Cas:126-29-4

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Dayang Chem (Hangzhou) Co.,Ltd.

As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem’s R&D center offer custom synthesis according to the contract research and development services for the fine chemicals, ph

Violaxanthin

Cas:126-29-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Shanghai Upbio Tech Co.,Ltd

1.In No Less 10 years exporting experience. you can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specializ

b,b-Carotene-3,3'-diol,5,6:5',6'-diepoxy-5,5',6,6'-tetrahydro-, (3S,3'S,5R,5'R,6S,6'S)-

Cas:126-29-4

Min.Order:1 Gram

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Qingdao Beluga Import and Export Co., LTD

VIOLAXANTHIN CAS:126-29-4 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic intermediates,

VIOLAXANTHIN CAS:126-29-4

Cas:126-29-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

b,b-Carotene-3,3'-diol,5,6:5',6'-diepoxy-5,5',6,6'-tetrahydro-, (3S,3'S,5R,5'R,6S,6'S)-

Cas:126-29-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

b,b-Carotene-3,3'-diol,5,6:5',6'-diepoxy-5,5',6,6'-tetrahydro-, (3S,3'S,5R,5'R,6S,6'S)-

Cas:126-29-4

Min.Order:0

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Hangzhou Keyingchem Co.,Ltd

Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det

VIOLAXANTHIN

Cas:126-29-4

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

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Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

b,b-Carotene-3,3'-diol,5,6:5',6'-diepoxy-5,5',6,6'-tetrahydro-, (3S,3'S,5R,5'R,6S,6'S)-

Cas:126-29-4

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

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EAST CHEMSOURCES LIMITED

factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B

Violaxanthin

Cas:126-29-4

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

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Hubei CuiRan Biotechnology Co., Ltd

General tips:For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. We recommend that you prepare and use the solution on the same d

Violaxanthin

Cas:126-29-4

Min.Order:10 Milligram

Negotiable

Type:Lab/Research institutions

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Shandong Mopai Biotechnology Co., LTD

Shandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W

Violaxanthin

Cas:126-29-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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KAISA GROUP INC

1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer

Violaxanthin

Cas:126-29-4

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

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Bluecrystal chem-union

We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp

Violaxanthin

Cas:126-29-4

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Trading Company

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Henan Allgreen Chemical Co.,Ltd

high quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea

VIOLAXANTHIN(SH)

Cas:126-29-4

Min.Order:0

Negotiable

Type:Manufacturers

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Hangzhou J&H Chemical Co., Ltd.

J&H CHEM is one of China's leading providers of integrated fine chemical services including offering, research and development, Custom manufacturing business, as well as other Value-added customer services, for diversified range products of chemicals

VIOLAXANTHIN

Cas:126-29-4

Min.Order:0

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Type:Lab/Research institutions

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Xi`an Eastling Biotech Co., Ltd.

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:Beijing or Guangzhou

VIOLAXANTHIN

Cas:126-29-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Henan Tianfu Chemical Co., Ltd.

1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.

b,b-Carotene-3,3'-diol,5,6:5',6'-diepoxy-5,5',6,6'-tetrahydro-, (3S,3'S,5R,5'R,6S,6'S)-

Cas:126-29-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

VIOLAXANTHIN

Cas:126-29-4

Min.Order:0

Negotiable

Type:Manufacturers

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Antimex Chemical Limied

Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali

b,b-Carotene-3,3'-diol,5,6:5',6'-diepoxy-5,5',6,6'-tetrahydro-, (3S,3'S,5R,5'R,6S,6'S)-

Cas:126-29-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Hubei Langyou International Trading Co., Ltd

Violaxanthin Application:Violaxanthin

Violaxanthin

Cas:126-29-4

Min.Order:0

Negotiable

Type:Other

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DB BIOTECH CO., LTD

best seller Application:API

VIOLAXANTHIN

Cas:126-29-4

Min.Order:0

Negotiable

Type:Trading Company

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Henan Kanbei Chemical Co.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

VIOLAXANTHIN

Cas:126-29-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Hebei Quanhe Biotechnology Co. LTD

1. Timely and efficient service to ensure communication with customers2. Produce products of different specifications and sizes according to your requirements.3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures sta

VIOLAXANTHIN

Cas:126-29-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Hunan Longxianng Runhui Trading Co.,Ltd

ViolaxanthinAppearance:white powder Storage:Store in dry,dark,ventilated place Package:Aluminous bag or plastic bags Application:APIs, pharmaceutical intermediates Transportation:By express (Door to door) such as FEDEX, DHL, EMS for small amount. By

Violaxanthin

Cas:126-29-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Shanghai Chinqesen Biotechnology Co., Ltd.

Good Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen

126-29-4

Cas:126-29-4

Min.Order:0

Negotiable

Type:Trading Company

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Hebei Muhuang Technology Co., Ltd

best seller Application:API

VIOLAXANTHIN

Cas:126-29-4

Min.Order:0

Negotiable

Type:Trading Company

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ZHEJIANG JIUZHOU CHEM CO.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

VIOLAXANTHIN

Cas:126-29-4

Min.Order:0

Negotiable

Type:Trading Company

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shanghai longbang industry co.,ltd

Shanghai LONGBANG , Boasts strong competitive advantages by our well-trained chemists with rich professional backgroud. We aim to win the market via quick response and fast delivery, as well as continous development for high-tech medical compoun

Violaxanthin

Cas:126-29-4

Min.Order:10 Gram

Negotiable

Type:Trading Company

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Chengdu Push Bio-technology Co., Ltd

Chengdu Push Bio-technology Co., Ltd. provides more than 4,000 natural monomeric substances, including approximately 6,000 products at different grades, specifications and purities. We have specialized in the R&D of medicinally active ingredients sta

Violaxanthin

Cas:126-29-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Shanghai united Scientific Co.,Ltd.

United Scientific Company Located in Shanghai of China , is a competitive player in the global specialty and fine chemical market. Fenghua has both the expertise and flexibility to produce a wide range of chemicals. Focusing on developing the innovat

b,b-Carotene-3,3'-diol,5,6:5',6'-diepoxy-5,5',6,6'-tetrahydro-, (3S,3'S,5R,5'R,6S,6'S)-

Cas:126-29-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Synthetic route

C21H30O2

C21H30O2

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
With tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride In toluene at 60℃; for 0.166667h;49%
C46H42P2
39776-40-4

C46H42P2

(1'S,2'R,4'S,2E,4E)-5-(1',2'-Epoxy-4'-hydroxy-2',6',6'-trimethylcyclohexyl)-3-methyl-2,4-pentadienal
28874-44-4

(1'S,2'R,4'S,2E,4E)-5-(1',2'-Epoxy-4'-hydroxy-2',6',6'-trimethylcyclohexyl)-3-methyl-2,4-pentadienal

A

Violaxanthin
126-29-4

Violaxanthin

B

C40H56O4

C40H56O4

C

C40H56O4

C40H56O4

Conditions
ConditionsYield
In methanol 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.; Yield given. Yields of byproduct given;
di-cis-neoviolaxanthin C

di-cis-neoviolaxanthin C

A

9-cis-violaxanthin
26927-07-1

9-cis-violaxanthin

B

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
In benzene for 2h; Heating; stereomutation; further violaxanthins; iodine catalyst;
13-cis-violaxanthin
75715-58-1

13-cis-violaxanthin

A

Violaxanthin
126-29-4

Violaxanthin

B

central-cis-violaxanthin
24620-97-1

central-cis-violaxanthin

Conditions
ConditionsYield
In pyridine at 73.6 - 93.9℃; Kinetics; Equilibrium constant; Thermodynamic data; other C40-carotenoids, other solvents, var. temp.; EA, ΔH, ΔS, ΔG;
central-cis-violaxanthin
24620-97-1

central-cis-violaxanthin

A

Violaxanthin
126-29-4

Violaxanthin

B

13-cis-violaxanthin
75715-58-1

13-cis-violaxanthin

Conditions
ConditionsYield
In pyridine at 73.6 - 93.9℃; Kinetics; Equilibrium constant; Thermodynamic data; other C40-carotenoids, other solvents, var. temp.; EA, ΔH, ΔS, ΔG;
(all-E,3R,3'R)-β,β-carotene-3,3'-diol 3,3'-diacetate
115406-45-6, 16638-61-2

(all-E,3R,3'R)-β,β-carotene-3,3'-diol 3,3'-diacetate

A

(3S,5S,6R,3'R)-antheraxanthin
25494-45-5

(3S,5S,6R,3'R)-antheraxanthin

B

violaxanthin B
80629-24-9

violaxanthin B

C

violaxanthin A
80629-23-8

violaxanthin A

D

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Stage #1: (all-E,3R,3'R)-β,β-carotene-3,3'-diol 3,3'-diacetate With monoperoxyphthalic acid In diethyl ether at 20℃; for 40h;
Stage #2: With potassium hydroxide In methanol Further byproducts given;
A 60 mg
B 75 mg
C 80 mg
D 10 mg
4,4-(Ethylendioxy)-2,6,6-trimethyl-1-cyclohexen-1-methanol
23069-07-0

4,4-(Ethylendioxy)-2,6,6-trimethyl-1-cyclohexen-1-methanol

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 9 steps
1: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
2: 91 percent / pyridine / 4 h / 0 °C
3: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
5: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
6: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
7: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
8: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
9: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 11 steps
1: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
2: 91 percent / pyridine / 4 h / 0 °C
3: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
5: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
6: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
7: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
8: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
9: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
10: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
11: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
Multi-step reaction with 8 steps
1: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
2: 91 percent / pyridine / 4 h / 0 °C
3: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
5: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
6: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
7: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
8: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
4-methyl-pent-3-en-2-one
141-79-7

4-methyl-pent-3-en-2-one

sodium

sodium

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 12 steps
1: 36 percent / ZnCl2 / heptane; benzene / 211 h / Heating
2: 1.) CH(OEt)3; 2.) TsOH*H2O / 1.) H2SO4, 12 deg C, 1440 min; 2.) Et2O, H2O, 5 min, r.t.
3: LiAlH4 / various solvent(s) / 2.5 h / 55 °C
4: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
5: 91 percent / pyridine / 4 h / 0 °C
6: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
8: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
9: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
10: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
11: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
12: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 14 steps
1: 36 percent / ZnCl2 / heptane; benzene / 211 h / Heating
2: 1.) CH(OEt)3; 2.) TsOH*H2O / 1.) H2SO4, 12 deg C, 1440 min; 2.) Et2O, H2O, 5 min, r.t.
3: LiAlH4 / various solvent(s) / 2.5 h / 55 °C
4: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
5: 91 percent / pyridine / 4 h / 0 °C
6: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
8: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
9: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
10: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
11: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
12: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
13: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
14: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
Multi-step reaction with 11 steps
1: 36 percent / ZnCl2 / heptane; benzene / 211 h / Heating
2: 1.) CH(OEt)3; 2.) TsOH*H2O / 1.) H2SO4, 12 deg C, 1440 min; 2.) Et2O, H2O, 5 min, r.t.
3: LiAlH4 / various solvent(s) / 2.5 h / 55 °C
4: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
5: 91 percent / pyridine / 4 h / 0 °C
6: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
8: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
9: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
10: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
11: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
4,4-(Ethylendioxy)-2,6,6-trimethyl-1-cyclohexen-1-carbonsaeure-ethylester
23069-06-9

4,4-(Ethylendioxy)-2,6,6-trimethyl-1-cyclohexen-1-carbonsaeure-ethylester

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 10 steps
1: LiAlH4 / various solvent(s) / 2.5 h / 55 °C
2: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
3: 91 percent / pyridine / 4 h / 0 °C
4: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
6: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
7: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
8: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
9: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
10: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 12 steps
1: LiAlH4 / various solvent(s) / 2.5 h / 55 °C
2: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
3: 91 percent / pyridine / 4 h / 0 °C
4: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
6: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
7: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
8: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
9: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
10: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
11: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
12: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
Multi-step reaction with 9 steps
1: LiAlH4 / various solvent(s) / 2.5 h / 55 °C
2: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
3: 91 percent / pyridine / 4 h / 0 °C
4: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
6: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
7: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
8: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
9: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
ethyl 2,6,6-trimethyl-4-oxocyclohex-2-ene-1-carboxylate
23068-96-4

ethyl 2,6,6-trimethyl-4-oxocyclohex-2-ene-1-carboxylate

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 11 steps
1: 1.) CH(OEt)3; 2.) TsOH*H2O / 1.) H2SO4, 12 deg C, 1440 min; 2.) Et2O, H2O, 5 min, r.t.
2: LiAlH4 / various solvent(s) / 2.5 h / 55 °C
3: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
4: 91 percent / pyridine / 4 h / 0 °C
5: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
7: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
8: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
9: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
10: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
11: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 13 steps
1: 1.) CH(OEt)3; 2.) TsOH*H2O / 1.) H2SO4, 12 deg C, 1440 min; 2.) Et2O, H2O, 5 min, r.t.
2: LiAlH4 / various solvent(s) / 2.5 h / 55 °C
3: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
4: 91 percent / pyridine / 4 h / 0 °C
5: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
7: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
8: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
9: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
10: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
11: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
12: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
13: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
Multi-step reaction with 10 steps
1: 1.) CH(OEt)3; 2.) TsOH*H2O / 1.) H2SO4, 12 deg C, 1440 min; 2.) Et2O, H2O, 5 min, r.t.
2: LiAlH4 / various solvent(s) / 2.5 h / 55 °C
3: 93 percent / Ti(i-PrO), t-BuOOH / CH2Cl2; 2,2,4-trimethyl-pentane / -67 °C
4: 91 percent / pyridine / 4 h / 0 °C
5: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
7: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
8: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
9: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
10: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
(-)-(1S,2R)-1,2-Epoxy-4,4-(ethylendioxy)-2,6,6-trimethylcyclohexan-1-carbaldehyd
122346-85-4, 132340-85-3, 142563-00-6

(-)-(1S,2R)-1,2-Epoxy-4,4-(ethylendioxy)-2,6,6-trimethylcyclohexan-1-carbaldehyd

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 15.86 g / tetrahydrofuran
2: MgSO4, H2O, montmorillonite / toluene / 0.04 h
3: DIBAH, H2O, MeOH / diethyl ether; hexane / 3 h / Ambient temperature
4: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
5: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 7 steps
1: 15.86 g / tetrahydrofuran
2: MgSO4, H2O, montmorillonite / toluene / 0.04 h
3: DIBAH, H2O, MeOH / diethyl ether; hexane / 3 h / Ambient temperature
4: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
5: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
6: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
7: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
C18H30O6P2

C18H30O6P2

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
2: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
3: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
(1'S,2'R,4'S,2E,4E)-5-(1',2'-Epoxy-4'-hydroxy-2',6',6'-trimethylcyclohexyl)-3-methyl-2,4-pentadienal
28874-44-4

(1'S,2'R,4'S,2E,4E)-5-(1',2'-Epoxy-4'-hydroxy-2',6',6'-trimethylcyclohexyl)-3-methyl-2,4-pentadienal

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
2: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
3: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
(+)-(1R,2R)-1,2-Epoxy-4,4-(ethylendioxy)-2,6,6-trimethylcyclohexan-1-methanol
122346-75-2, 122407-34-5, 142562-99-0

(+)-(1R,2R)-1,2-Epoxy-4,4-(ethylendioxy)-2,6,6-trimethylcyclohexan-1-methanol

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 8 steps
1: 91 percent / pyridine / 4 h / 0 °C
2: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
4: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
5: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
6: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
7: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
8: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 10 steps
1: 91 percent / pyridine / 4 h / 0 °C
2: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
4: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
5: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
6: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
7: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
8: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
9: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
10: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
Multi-step reaction with 7 steps
1: 91 percent / pyridine / 4 h / 0 °C
2: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
4: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
5: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
6: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
7: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
15,15'-Didehydroviolaxanthin
122346-90-1

15,15'-Didehydroviolaxanthin

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
2: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
(1'S,2'R,2E,4E)-5-(1',2'-Epoxy-2',6',6'-trimethyl-4'-oxocyclohexyl)-3-methyl-2,4-pentadiensaeure-methylester
122346-88-7

(1'S,2'R,2E,4E)-5-(1',2'-Epoxy-2',6',6'-trimethyl-4'-oxocyclohexyl)-3-methyl-2,4-pentadiensaeure-methylester

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: DIBAH, H2O, MeOH / diethyl ether; hexane / 3 h / Ambient temperature
2: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
3: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 5 steps
1: DIBAH, H2O, MeOH / diethyl ether; hexane / 3 h / Ambient temperature
2: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
3: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
4: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
5: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
(1R,2R)-Essigsaeure-(1,2-epoxy-2,6,6-trimethyl-4-oxocyclohexan-1-methyl)ester
122346-77-4

(1R,2R)-Essigsaeure-(1,2-epoxy-2,6,6-trimethyl-4-oxocyclohexan-1-methyl)ester

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 6 steps
2: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
3: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
4: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
5: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
6: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 8 steps
2: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
3: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
4: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
5: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
6: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
7: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
8: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
Multi-step reaction with 5 steps
2: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
3: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
4: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
5: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
(1R,2R,4S)-Essigsaeure-(1,2-epoxy-4-hydroxy-2,6,6-trimethylcyclohexan-1-methyl)ester

(1R,2R,4S)-Essigsaeure-(1,2-epoxy-4-hydroxy-2,6,6-trimethylcyclohexan-1-methyl)ester

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1: 93 percent / pyridine / 12 h / 4 °C
2: 96 percent / 5percent KOH / methanol
3: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
4: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
5: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
6: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
7: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 9 steps
1: 93 percent / pyridine / 12 h / 4 °C
2: 96 percent / 5percent KOH / methanol
3: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
4: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
5: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
6: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
7: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
8: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
9: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
(1R,2R,4S)-1,2-Epoxy-4-pivaloyloxy-2,6,6-trimethylcyclohexan-1-methanol
122346-81-0

(1R,2R,4S)-1,2-Epoxy-4-pivaloyloxy-2,6,6-trimethylcyclohexan-1-methanol

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
2: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
3: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
4: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
5: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 7 steps
1: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
2: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
3: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
4: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
5: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
6: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
7: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
(2E,4E)-5-[(1'S,2'R,4'S)-4'-hydroxy-1',2'-epoxy-2',6',6'-trimethylcyclohexa-1'-yl]-3-methylpenta-2,4-diene-1-ol
118205-56-4

(2E,4E)-5-[(1'S,2'R,4'S)-4'-hydroxy-1',2'-epoxy-2',6',6'-trimethylcyclohexa-1'-yl]-3-methylpenta-2,4-diene-1-ol

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
2: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 4 steps
1: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
2: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
3: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
4: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
(1R,2R)-Essigsaeure-<1,2-epoxy-4,4-(ethylendioxy)-2,6,6-trimethylcyclohexan-1-methyl>ester

(1R,2R)-Essigsaeure-<1,2-epoxy-4,4-(ethylendioxy)-2,6,6-trimethylcyclohexan-1-methyl>ester

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
3: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
4: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
5: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
6: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
7: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 9 steps
1: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
3: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
4: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
5: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
6: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
7: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
8: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
9: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
Multi-step reaction with 6 steps
1: 87 percent / MgSO4, H2O, montmorillonite / toluene / 0.05 h
3: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
4: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
5: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
6: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
(1R,2R,4S)-1,2-Epoxy-4-pivaloyloxy-2,6,6-trimethylcyclohexan-1-carbaldehyd
122346-82-1

(1R,2R,4S)-1,2-Epoxy-4-pivaloyloxy-2,6,6-trimethylcyclohexan-1-carbaldehyd

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
2: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
3: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
4: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 6 steps
1: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
2: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
3: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
4: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
5: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
6: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
(1R,2R,4S)-Essigsaeure-(1,2-epoxy-4-pivaloyloxy-2,6,6-trimethylcyclohexan-1-methyl)ester
122346-80-9

(1R,2R,4S)-Essigsaeure-(1,2-epoxy-4-pivaloyloxy-2,6,6-trimethylcyclohexan-1-methyl)ester

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: 96 percent / 5percent KOH / methanol
2: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
3: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
4: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
5: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
6: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 8 steps
1: 96 percent / 5percent KOH / methanol
2: oxalyl chloride, (i-Pr)2EtN, DMSO / CH2Cl2 / 4 h
3: t-BuOK / tetrahydrofuran / 4 h / Ambient temperature
4: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
5: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
6: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
7: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
8: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
(1'S,2'R,2E,4E)-5-<1',2'-Epoxy-4',4'-(ethylendioxy)-2',6',6'-trimethylcyclohexyl>-3-methylpenta-2,4-diensaeure-methylester

(1'S,2'R,2E,4E)-5-<1',2'-Epoxy-4',4'-(ethylendioxy)-2',6',6'-trimethylcyclohexyl>-3-methylpenta-2,4-diensaeure-methylester

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: MgSO4, H2O, montmorillonite / toluene / 0.04 h
2: DIBAH, H2O, MeOH / diethyl ether; hexane / 3 h / Ambient temperature
3: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
4: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 6 steps
1: MgSO4, H2O, montmorillonite / toluene / 0.04 h
2: DIBAH, H2O, MeOH / diethyl ether; hexane / 3 h / Ambient temperature
3: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
4: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
5: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
6: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
(1'S,2'R,4'S,2E,4E)-5-(1',2'-Epoxy-4'-pivaloyloxy-2',6',6'-trimethylcyclohexyl)-3-methylpenta-2,4-diensaeure-methylester
122346-84-3

(1'S,2'R,4'S,2E,4E)-5-(1',2'-Epoxy-4'-pivaloyloxy-2',6',6'-trimethylcyclohexyl)-3-methylpenta-2,4-diensaeure-methylester

Violaxanthin
126-29-4

Violaxanthin

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
2: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
3: methanol / 30 min, -50 deg C, 2 h, -10 deg C, 12 h, r.t.
View Scheme
Multi-step reaction with 5 steps
1: 94 percent / DIBAH, H2O, MeOH / diethyl ether; hexane / 1 h / Ambient temperature
2: 91 percent / MnO2 / ethyl acetate / 2.5 h / Ambient temperature
3: 70 percent / 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidone, BuLi / tetrahydrofuran; hexane / 2 h / Ambient temperature
4: 75 percent / H2 / Lindlar-catalyst / ethyl acetate / 0.5 h
5: 0.1percent (i-Pr)2EtN / heptane / 1.5 h / Heating; Irradiation
View Scheme
Violaxanthin
126-29-4

Violaxanthin

Violadion

Violadion

Conditions
ConditionsYield
With acetic anhydride In dimethyl sulfoxide Ambient temperature;60%
Violaxanthin
126-29-4

Violaxanthin

acetic anhydride
108-24-7

acetic anhydride

(3S,5R,6S,3'S,5'R,6'S)-violaxanthin diacetate
20584-58-1, 62839-94-5, 75172-74-6, 106357-50-0, 122407-50-5

(3S,5R,6S,3'S,5'R,6'S)-violaxanthin diacetate

Conditions
ConditionsYield
With pyridine
Violaxanthin
126-29-4

Violaxanthin

9-cis-violaxanthin
26927-07-1

9-cis-violaxanthin

Conditions
ConditionsYield
With hexane; iodine Irradiation;
Photoisomerization;
Violaxanthin
126-29-4

Violaxanthin

auroxanthin
27785-15-5

auroxanthin

Conditions
ConditionsYield
With ethanol; acetic acid
bei der Chromatographie an Kieselgel oder Kieselgur;
With hydrogenchloride In chloroform
Violaxanthin
126-29-4

Violaxanthin

(6S,7aR)-2-[(2E,4E,6E,8E,10E,12E,14E)-17-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-6,11,15-trimethylheptadeca-2,4,6,8,10,12,14,16-octaen-2-yl]-4,4,7a-trimethyl-2,4,5,6,7,7a-hexahydro-1-benzofuran-6-ol
1912-50-1, 29363-89-1, 29558-14-3, 55963-84-3, 68366-25-6, 81646-18-6, 95119-74-7, 95119-75-8, 95119-76-9, 95119-77-0, 115182-32-6, 123618-86-0

(6S,7aR)-2-[(2E,4E,6E,8E,10E,12E,14E)-17-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-6,11,15-trimethylheptadeca-2,4,6,8,10,12,14,16-octaen-2-yl]-4,4,7a-trimethyl-2,4,5,6,7,7a-hexahydro-1-benzofuran-6-ol

Conditions
ConditionsYield
With pyridine; benzoyl chloride Behandeln des nach Abtrennung von Di-O-benzoyl-violaxanthin erhaltenen Reaktionsprodukts mit Natriummaethylat in Aethanol;
Chromatographie an Kieselgel;
Violaxanthin
126-29-4

Violaxanthin

4-chlorobenzoyl chloride
586-75-4

4-chlorobenzoyl chloride

violaxanthin di-p-bromobenzoate

violaxanthin di-p-bromobenzoate

Conditions
ConditionsYield
With pyridine at 0℃; for 1.5h;
Violaxanthin
126-29-4

Violaxanthin

A

(1'S,2'R,4'S,2E,4E)-5-(1',2'-Epoxy-4'-hydroxy-2',6',6'-trimethylcyclohexyl)-3-methyl-2,4-pentadienal
28874-44-4

(1'S,2'R,4'S,2E,4E)-5-(1',2'-Epoxy-4'-hydroxy-2',6',6'-trimethylcyclohexyl)-3-methyl-2,4-pentadienal

B

5,6-epoxy-3-hydroxy-5,6-dihydro-12'-apo-β-caroten-12'-al
62777-81-5

5,6-epoxy-3-hydroxy-5,6-dihydro-12'-apo-β-caroten-12'-al

C

5,6-epoxy-3-hydroxy-5,6-dihydro-10'-apo-β-caroten-10'-al
17237-68-2

5,6-epoxy-3-hydroxy-5,6-dihydro-10'-apo-β-caroten-10'-al

Conditions
ConditionsYield
With zinc(II) permanganate In acetone for 1h; Ambient temperature;
Violaxanthin
126-29-4

Violaxanthin

(3S,5R,6E,6'E)-5,6-dihydro-6,5'-retro-β,β-carotene-3,5,3',5'-tetrol

(3S,5R,6E,6'E)-5,6-dihydro-6,5'-retro-β,β-carotene-3,5,3',5'-tetrol

Conditions
ConditionsYield
chromoplasts from Narcissus pseudonarcissus, NAD(P)H, protoporphyrin IX;
Violaxanthin
126-29-4

Violaxanthin

A

13-cis-violaxanthin
75715-58-1

13-cis-violaxanthin

B

central-cis-violaxanthin
24620-97-1

central-cis-violaxanthin

Conditions
ConditionsYield
In pyridine at 73.6 - 93.8℃; Kinetics; Equilibrium constant; Thermodynamic data; other C40-carotenoids, other solvents, var. temp.; EA, ΔH, ΔS, ΔG;
Violaxanthin
126-29-4

Violaxanthin

A

auroxanthin
27785-15-5

auroxanthin

B

(3S,5R,8Ξ,3'R)-5,8-epoxy-5,8-dihydro-β,β-carotene-3,3'-diol;(3R,3'R)-β,β-carotene-3,3'-diol

(3S,5R,8Ξ,3'R)-5,8-epoxy-5,8-dihydro-β,β-carotene-3,3'-diol;(3R,3'R)-β,β-carotene-3,3'-diol

Conditions
ConditionsYield
With hydrogenchloride; methanol
Violaxanthin
126-29-4

Violaxanthin

hexane
110-54-3

hexane

iodine
7553-56-2

iodine

9-cis-violaxanthine

9-cis-violaxanthine

Conditions
ConditionsYield
Isomerisierung.Irradiation;
Violaxanthin
126-29-4

Violaxanthin

A

all-trans-mutatoxanthin
31661-06-0

all-trans-mutatoxanthin

B

auroxanthine

auroxanthine

Conditions
ConditionsYield
With hydrogenchloride; methanol (3S,5R,8Ξ,3'R)-5,8-epoxy-5,8-dihydro-β,β-carotene-3,3'-diol;
Violaxanthin
126-29-4

Violaxanthin

A

luteoxanthin

luteoxanthin

B

auroxanthine

auroxanthine

Conditions
ConditionsYield
Isomerisierung, beim Chromatographieren an Kieselgel;
Violaxanthin
126-29-4

Violaxanthin

hydrogenchloride
7647-01-0

hydrogenchloride

methanol
67-56-1

methanol

A

auroxanthine

auroxanthine

B

mutatoxanthine

mutatoxanthine

C

(3R,3'R)-β,β-carotene-3,3'-diol

(3R,3'R)-β,β-carotene-3,3'-diol

Violaxanthin
126-29-4

Violaxanthin

A

9-cis-violaxanthin
26927-07-1

9-cis-violaxanthin

B

13-cis-violaxanthin
75715-58-1

13-cis-violaxanthin

C

/PBNZK047-1730/

/PBNZK047-1730/

D

/PBNZK047-1740/

/PBNZK047-1740/

Conditions
ConditionsYield
With diphenyl diselenide In benzene for 27h; Irradiation; Further byproducts given;
Violaxanthin
126-29-4

Violaxanthin

diethyl ether
60-29-7

diethyl ether

lithium alanate

lithium alanate

zeaxanthin

zeaxanthin

Violaxanthin
126-29-4

Violaxanthin

A

9-cis-violaxanthin
26927-07-1

9-cis-violaxanthin

B

13-cis-violaxanthin
75715-58-1

13-cis-violaxanthin

C

/PBNZK047-1730/

/PBNZK047-1730/

D

/PBNZK047-1735/

/PBNZK047-1735/

Conditions
ConditionsYield
With diphenyl diselenide In benzene for 3h; Irradiation; Further byproducts given;
Violaxanthin
126-29-4

Violaxanthin

all-trans-mutatoxanthin
31661-06-0

all-trans-mutatoxanthin

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: chromoplasts from Narcissus pseudonarcissus, NAD(P)H, protoporphyrin IX
2: 100 percent Spectr. / CDCl3 / 96 h
View Scheme
Violaxanthin
126-29-4

Violaxanthin

8-p-bromobenzoyloxy-5,6-epoxy-β-cyclocitral

8-p-bromobenzoyloxy-5,6-epoxy-β-cyclocitral

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: pyridine / 1.5 h / 0 °C
2: ozone / ethyl acetate / 0.15 h / -78 °C
View Scheme
Violaxanthin
126-29-4

Violaxanthin

trans-4-<(1S,2R,4R)-4-(p-bromobenzoyloxy)-1,2-epoxy-2,6,6-trimethylcyclohexyl>but-3-en-2-one

trans-4-<(1S,2R,4R)-4-(p-bromobenzoyloxy)-1,2-epoxy-2,6,6-trimethylcyclohexyl>but-3-en-2-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: pyridine / 1.5 h / 0 °C
2: ozone / ethyl acetate / 0.15 h / -78 °C
View Scheme

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