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Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality [5-(4-Methoxy-2,3,6-trimethylphenyl)-3-methyl-2,4-pentadienyl] supplier in China

Cas:62285-98-7

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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Hebei yanxi chemical co.,LTD.

hebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and developm

Dayang Chem (Hangzhou) Co.,Ltd.

Dayangchem’s R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. Near 20 years DayangChem has provided dif

((2E,4E)-3-METHYL-5-(2,6,6-TRIMETHYLCYCLOHEX-2-EN-1-YL)PENTA-2,4-DIEN-1-YL)TRIPHENYLPHOSPHONIUM BROMIDE

Cas:62285-98-7

Min.Order:1 Kilogram

FOB Price: $1.0 / 2.0

Type:Lab/Research institutions

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Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

[(2E,4E)-3-Methyl-5-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4-pentadienyl]-triphenylphosphonium bromide

Cas:62285-98-7

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Henan Tianfu Chemical Co., Ltd.

CAS No.62285-98-7 Our company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Sc

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

Factory direct supply CAS 62285-98-7 with best quality

Cas:62285-98-7

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Wuhan Han Sheng New Material Technology Co.,Ltd

Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We

Qingdao Beluga Import and Export Co., LTD

[(2E,4E)-3-Methyl-5-(2,6,6-trimethyl-2-cyclohexen-1-yl)-2,4-pentadien-1-yl](triphenyl)phosphonium bromide CAS:62285-98-7 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, prod

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

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

Afine Chemicals Limited

Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments

5-(4-METHOXY-2,3,6-TRIPHENYL)-3-METHYL-2,4-PENTADIENE-1-BROMIDETRIPHENYLPHOSPHINE

Cas:62285-98-7

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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Saiwante (shanghai) New Material Technology Co., Ltd.

Chemical Name:[(2E,4E)-3-Methyl-5-(2,6,6-trimethyl-2-cyclohexen-1-yl)-2,4-pentadien-1-yl](triphenyl)phosphonium bromide CAS No.:62285-98-7 Molecular Formula:C33H38BrP Molecular Weight:545.542 Hs Code.: Mol file:62285-98-7.mol Synonyms:Phos

Hot-selling cas62285-98-7 [(2E,4E)-3-methyl-5-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2

Cas:62285-98-7

Min.Order:1 Gram

FOB Price: $2.0 / 5.0

Type:Trading Company

inquiry

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

High quality [5-(4-Methoxy-2,3,6-trimethylphenyl)-3-methyl-2,4-pentadienyl]

Cas:62285-98-7

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

SHANGHAI SYSTEAM BIOCHEM CO., LTD

We are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov

((2E,4E)-3-METHYL-5-(2,6,6-TRIMETHYLCYCLOHEX-2-EN-1-YL)PENTA-2,4-DIEN-1-YL)TRIPHENYLPHOSPHONIUM BROMIDE CAS NO.62285-98-7

Cas:62285-98-7

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

inquiry

Siwei Development Group Ltd.

Product name: 5-(4-Methoxy-2,3,6-Triphenyl)-3-Methyl-2,4-Pentadiene-1-Bromidetriphenylphosphine CAS No.:62285-98-7 Molecule Formula:C33H38P.Br Molecule Weight:545.54 Purity: 98.0% Package: 25kg/drum Description:White or almost white cry

Best Quality 5-(4-Methoxy-2,3,6-Triphenyl)-3-Methyl-2,4-Pentadiene-1-Bromidetriphenylphosphine

Cas:62285-98-7

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

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

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

[(2E,4E)-3-Methyl-5-(2,6,6-trimethyl-2-cyclohexen-1-yl)-2,4-pentadien-1-yl](triphenyl)phosphonium bromide

Cas:62285-98-7

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

Suzhou Health Chemicals Co., Ltd.

High quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use

[3-Methyl-5-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4-pentadienyl]triphenylphosphonium bromide

Cas:62285-98-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

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

GIHI CHEMICALS CO.,LIMITED

Lower price, higher purity,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthesis of various pesticides, medicines, s

Kono Chem Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou

[(2E,4E)-3-Methyl-5-(2,6,6-trimethyl-2-cyclohexen-1-yl)-2,4-...

Cas:62285-98-7

Min.Order:0

Negotiable

Type:Other

inquiry

Hubei Taiho Chemical Co.,LTD

TAIHO Unique Advantages:1.We're factory2.Free samples available3.Commodity inspection can be done4.ISO9001,Kosher certifications5.10 years experiences Storage:Store in cool &dry place Package:aluminium foil bag/fiber can/plastic drum Application:comp

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

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

Hubei Langyou International Trading Co., Ltd

((2E,4E)-3-METHYL-5-(2,6,6-TRIMETHYLCYCLOHEX-2-EN-1-YL)PENTA-2,4-DIEN-1-YL)TRIPHENYLPHOSPHONIUM BROMIDE CAS NO.62285-98-7 Application:((2E,4E)-3-METHYL-5-(2,6,6-TRIMETHYLCYCLOHEX-2-EN-1-YL)PENTA-2,4-DIEN-1-YL)TRIPHENYLPHOSPHONIUM BROMIDE CAS NO.62285

Hunan Longxianng Runhui Trading Co.,Ltd

((2E,4E)-3-METHYL-5-(2,6,6-TRIMETHYLCYCLOHEX-2-EN-1-YL)PENTA-2,4-DIEN-1-YL)TRIPHENYLPHOSPHONIUM BROMIDE CAS NO.62285-98-7Appearance:crystal, powder Storage:stay in dry, cool and well-sealed Package:as your request Application:Pharmaceutical intermedi

Hangzhou Fandachem Co.,Ltd

[5-(4-Methoxy-2,3,6-trimethylphenyl)-3-methyl-2,4-pentadienyl]Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:pharmaceutical intermediate Transportation:by air, by sea, by express

[5-(4-Methoxy-2,3,6-trimethylphenyl)-3-methyl-2,4-pentadienyl]

Cas:62285-98-7

Min.Order:0

Negotiable

Type:Other

inquiry

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

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

Synthetic route

(1E)-1-(2,6,6-trimethylcyclohex-1-enyl)-3-methyl-1,4-pentadien-3-ol
59057-30-6

(1E)-1-(2,6,6-trimethylcyclohex-1-enyl)-3-methyl-1,4-pentadien-3-ol

triphenylphosphine hydrobromide
6399-81-1

triphenylphosphine hydrobromide

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
In methanol for 75h; Ambient temperature;100%
In methanol at 20℃; for 20h;73%
In tetrahydrofuran
3-methyl-5-bromo-1-(2,6,6-trimethyl-1-cyclohexen-1-yl)-1,3-pentadiene
38987-92-7

3-methyl-5-bromo-1-(2,6,6-trimethyl-1-cyclohexen-1-yl)-1,3-pentadiene

triphenylphosphine
603-35-0

triphenylphosphine

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
In acetonitrile at 50 - 55℃; for 5h; Inert atmosphere;92.8%
In acetonitrile at 50 - 55℃; for 5h; Inert atmosphere;92.1%
(2E,4E)-3-methyl-5-(2,6,6-trimethyl-1-cyclohexenyl)-2,4-pentadien-1-ol
3917-39-3

(2E,4E)-3-methyl-5-(2,6,6-trimethyl-1-cyclohexenyl)-2,4-pentadien-1-ol

triphenylphosphine hydrobromide
6399-81-1

triphenylphosphine hydrobromide

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
In methanol for 17h; Ambient temperature;
triphenylphosphine hydrobromide
6399-81-1

triphenylphosphine hydrobromide

Acetic acid (2Z,4E)-3-methyl-5-(2,6,6-trimethyl-cyclohex-1-enyl)-penta-2,4-dienyl ester

Acetic acid (2Z,4E)-3-methyl-5-(2,6,6-trimethyl-cyclohex-1-enyl)-penta-2,4-dienyl ester

A

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

B

β-ionylidenetriphenylphosphonium bromide

β-ionylidenetriphenylphosphonium bromide

Conditions
ConditionsYield
Stage #1: Acetic acid (2Z,4E)-3-methyl-5-(2,6,6-trimethyl-cyclohex-1-enyl)-penta-2,4-dienyl ester With lithium aluminium tetrahydride
Stage #2: triphenylphosphine hydrobromide
(E)-β-ionone
79-77-6

(E)-β-ionone

vinyl magnesium bromide
1826-67-1

vinyl magnesium bromide

triphenylphosphine hydrobromide
6399-81-1

triphenylphosphine hydrobromide

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Stage #1: (E)-β-ionone; vinyl magnesium bromide
Stage #2: triphenylphosphine hydrobromide Further stages.;
(E)-β-ionone
79-77-6

(E)-β-ionone

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 100 percent / tetrahydrofuran / 20 h / 20 °C
2: 73 percent / methanol / 20 h / 20 °C
View Scheme
Multi-step reaction with 2 steps
1: 94 percent / tetrahydrofuran / 14 h / Ambient temperature
2: 100 percent / methanol / 75 h / Ambient temperature
View Scheme
Multi-step reaction with 2 steps
1.1: sodium hydride / tetrahydrofuran / 24 h / 20 °C
2.1: lithium aluminium tetrahydride / diethyl ether / 0.5 h / 0 °C
2.2: 24 h / 20 °C
View Scheme
(2E,4E)-ethyl 3-methyl-5-(2,6,6-trimethylcyclohex-1-enyl)penta-2,4-dienoate
17974-55-9

(2E,4E)-ethyl 3-methyl-5-(2,6,6-trimethylcyclohex-1-enyl)penta-2,4-dienoate

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: LiAlH4 / diethyl ether / 0.25 h / Ambient temperature
2: methanol / 17 h / Ambient temperature
View Scheme
[5-(2,6,6-trimethyl-1-cyclohexen-1-yl)-3-methyl-2-penten-4-ynyl]triphenylphosphonium bromide

[5-(2,6,6-trimethyl-1-cyclohexen-1-yl)-3-methyl-2-penten-4-ynyl]triphenylphosphonium bromide

2,2'-ethane-1,2-diylbissulfanyl-bis-ethanol
5244-34-8

2,2'-ethane-1,2-diylbissulfanyl-bis-ethanol

nickel
7440-02-0

nickel

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
In methanol; dichloromethane; ethyl acetate
(2E,4E)-ethyl 3-methyl-5-(2,6,6-trimethylcyclohex-1-enyl)penta-2,4-dienoate
17974-55-9

(2E,4E)-ethyl 3-methyl-5-(2,6,6-trimethylcyclohex-1-enyl)penta-2,4-dienoate

triphenylphosphine hydrobromide
6399-81-1

triphenylphosphine hydrobromide

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Stage #1: (2E,4E)-ethyl 3-methyl-5-(2,6,6-trimethylcyclohex-1-enyl)penta-2,4-dienoate With lithium aluminium tetrahydride In diethyl ether at 0℃; for 0.5h;
Stage #2: triphenylphosphine hydrobromide In methanol at 20℃; for 24h;
2-(bromomethyl)-1,3,3-trimethylcyclohex-1-ene
59633-88-4

2-(bromomethyl)-1,3,3-trimethylcyclohex-1-ene

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: hexane / 4 h / 50 - 55 °C / Inert atmosphere
2.1: potassium hydroxide / isopropyl alcohol / 1 h / -5 - 5 °C / Inert atmosphere
3.1: sodium hydroxide / water; dichloromethane / 3 h / 15 - 20 °C
3.2: 3 h / 20 - 25 °C
4.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
C28H32P(1+)*Cl(1-)

C28H32P(1+)*Cl(1-)

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: sodium ethanolate / N,N-dimethyl-formamide / 5 h / -5 - 10 °C / Inert atmosphere
2.1: sodium hydroxide / water; dichloromethane / 3 h / 15 - 20 °C
2.2: 3 h / 20 - 25 °C
3.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
diethyl [(2,2,6-trimethylcyclohexyl)methyl]phosphonate

diethyl [(2,2,6-trimethylcyclohexyl)methyl]phosphonate

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: sodium methylate / N,N-dimethyl-formamide / 1 h / 0 - 15 °C / Inert atmosphere
2.1: sodium hydroxide / water; dichloromethane / 3 h / 15 - 20 °C
2.2: 3 h / 20 - 25 °C
3.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
triphenyl((2,6,6-trimethylcyclohex-1-enyl)methyl)phosphonium bromide
56013-01-5

triphenyl((2,6,6-trimethylcyclohex-1-enyl)methyl)phosphonium bromide

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: potassium hydroxide / isopropyl alcohol / 1 h / -5 - 5 °C / Inert atmosphere
2.1: sodium hydroxide / water; dichloromethane / 3 h / 15 - 20 °C
2.2: 3 h / 20 - 25 °C
3.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
3-methyl-5-acetoxy-1-(2,6,6-trimethyl-1-cyclohexen-1-yl)-1,3-pentadiene
3917-38-2

3-methyl-5-acetoxy-1-(2,6,6-trimethyl-1-cyclohexen-1-yl)-1,3-pentadiene

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: sodium hydroxide / water; dichloromethane / 3 h / 15 - 20 °C
1.2: 3 h / 20 - 25 °C
2.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
3,7-dimethylocta-1,6-dien-3-ol
78-70-6

3,7-dimethylocta-1,6-dien-3-ol

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: hydrogen bromide; sodium hydroxide / water; dichloromethane / 2 h / 30 - 35 °C / Inert atmosphere
1.2: 2 h / 35 - 40 °C
2.1: hexane / 4 h / 50 - 55 °C / Inert atmosphere
3.1: potassium hydroxide / isopropyl alcohol / 1 h / -5 - 5 °C / Inert atmosphere
4.1: sodium hydroxide / water; dichloromethane / 3 h / 15 - 20 °C
4.2: 3 h / 20 - 25 °C
5.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
Multi-step reaction with 5 steps
1.1: sodium hydroxide; thionyl chloride / 1,2-dichloro-ethane; water / 3 h / 40 - 45 °C
1.2: 5 h / 70 - 75 °C
2.1: acetonitrile / 4 h / 60 - 65 °C / Inert atmosphere
3.1: sodium ethanolate / N,N-dimethyl-formamide / 5 h / -5 - 10 °C / Inert atmosphere
4.1: sodium hydroxide / water; dichloromethane / 3 h / 15 - 20 °C
4.2: 3 h / 20 - 25 °C
5.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
Multi-step reaction with 5 steps
1.1: sodium hydroxide; thionyl chloride / 1,2-dichloro-ethane; water / 3 h / 40 - 45 °C
1.2: 5 h / 70 - 75 °C
2.1: 4 h / 105 - 110 °C / Inert atmosphere
3.1: sodium methylate / N,N-dimethyl-formamide / 1 h / 0 - 15 °C / Inert atmosphere
4.1: sodium hydroxide / water; dichloromethane / 3 h / 15 - 20 °C
4.2: 3 h / 20 - 25 °C
5.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
1,3,3-trimethyl-2-chloromethylcyclohexene

1,3,3-trimethyl-2-chloromethylcyclohexene

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: acetonitrile / 4 h / 60 - 65 °C / Inert atmosphere
2.1: sodium ethanolate / N,N-dimethyl-formamide / 5 h / -5 - 10 °C / Inert atmosphere
3.1: sodium hydroxide / water; dichloromethane / 3 h / 15 - 20 °C
3.2: 3 h / 20 - 25 °C
4.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
Multi-step reaction with 4 steps
1.1: 4 h / 105 - 110 °C / Inert atmosphere
2.1: sodium methylate / N,N-dimethyl-formamide / 1 h / 0 - 15 °C / Inert atmosphere
3.1: sodium hydroxide / water; dichloromethane / 3 h / 15 - 20 °C
3.2: 3 h / 20 - 25 °C
4.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
4-bromo-3-methyl-2-buten-1-ol acetate
32659-14-6

4-bromo-3-methyl-2-buten-1-ol acetate

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: acetonitrile / 4 h / 60 - 65 °C / Inert atmosphere
2.1: sodium ethanolate / N,N-dimethyl-formamide / 2 h / 0 - 5 °C / Inert atmosphere
3.1: sodium hydroxide / dichloromethane; water / 3 h / 15 - 20 °C
3.2: 3 h / 20 - 25 °C
4.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
Multi-step reaction with 4 steps
1.1: methanol / 4 h / 100 - 105 °C / Inert atmosphere
2.1: potassium tert-butylate / N,N-dimethyl-formamide / 2 h / -10 - 0 °C / Inert atmosphere
3.1: sodium hydroxide / dichloromethane; water / 3 h / 15 - 20 °C
3.2: 3 h / 20 - 25 °C
4.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
Multi-step reaction with 4 steps
1.1: ethanol / 4 h / 105 - 110 °C / Inert atmosphere
2.1: sodium ethanolate / toluene / 2 h / -5 - 5 °C / Inert atmosphere
3.1: sodium hydroxide / dichloromethane; water / 3 h / 15 - 20 °C
3.2: 3 h / 20 - 25 °C
4.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
C25H26O2P(1+)*Br(1-)

C25H26O2P(1+)*Br(1-)

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: sodium ethanolate / N,N-dimethyl-formamide / 2 h / 0 - 5 °C / Inert atmosphere
2.1: sodium hydroxide / dichloromethane; water / 3 h / 15 - 20 °C
2.2: 3 h / 20 - 25 °C
3.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
C25H26O2P(1+)*Cl(1-)

C25H26O2P(1+)*Cl(1-)

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: sodium methylate / N,N-dimethyl-formamide / 2 h / 5 - 10 °C / Inert atmosphere
2.1: sodium hydroxide / dichloromethane; water / 3 h / 15 - 20 °C
2.2: 3 h / 20 - 25 °C
3.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
diethyl 2-methyl-4-acetoxy-2-butenylphosphonate

diethyl 2-methyl-4-acetoxy-2-butenylphosphonate

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: sodium ethanolate / toluene / 2 h / -5 - 5 °C / Inert atmosphere
2.1: sodium hydroxide / dichloromethane; water / 3 h / 15 - 20 °C
2.2: 3 h / 20 - 25 °C
3.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
dimethyl 2-methyl-4-acetoxy-2-butenylphosphonate

dimethyl 2-methyl-4-acetoxy-2-butenylphosphonate

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: potassium tert-butylate / N,N-dimethyl-formamide / 2 h / -10 - 0 °C / Inert atmosphere
2.1: sodium hydroxide / dichloromethane; water / 3 h / 15 - 20 °C
2.2: 3 h / 20 - 25 °C
3.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
(E)-1-O-acetyl-4-chloro-3-methyl-2-buten-1-ol
24529-80-4

(E)-1-O-acetyl-4-chloro-3-methyl-2-buten-1-ol

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: acetonitrile / 4 h / 70 - 75 °C / Inert atmosphere
2.1: sodium methylate / N,N-dimethyl-formamide / 2 h / 5 - 10 °C / Inert atmosphere
3.1: sodium hydroxide / dichloromethane; water / 3 h / 15 - 20 °C
3.2: 3 h / 20 - 25 °C
4.1: acetonitrile / 5 h / 50 - 55 °C / Inert atmosphere
View Scheme
4-palmitoyloxy-2-methyl-2-buten-1-al

4-palmitoyloxy-2-methyl-2-buten-1-al

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

retinyl palmitate
79-81-2

retinyl palmitate

Conditions
ConditionsYield
With sodium ethanolate In N,N-dimethyl-formamide at -5 - 5℃; for 3h; Wittig Olefination; Inert atmosphere;91.3%
(E)-4-acetoxy-2-methylcrotonaldehyde
26586-02-7

(E)-4-acetoxy-2-methylcrotonaldehyde

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Retinol acetate
127-47-9

Retinol acetate

Conditions
ConditionsYield
With sodium ethanolate In N,N-dimethyl-formamide at -5 - 0℃; for 2h; Solvent; Temperature; Reagent/catalyst; Wittig Olefination; Inert atmosphere;91%
With sodium ethanolate In N,N-dimethyl-formamide at -5 - 5℃; for 2h; Time; Inert atmosphere;90.7%
(Z)-3-methyl-4-oxobut-2-enoic acid
70143-04-3

(Z)-3-methyl-4-oxobut-2-enoic acid

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

13-cis-retinoic acid
4759-48-2

13-cis-retinoic acid

Conditions
ConditionsYield
Stage #1: (Z)-3-methyl-4-oxobut-2-enoic acid; 5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide With sodium hydroxide In isopropyl alcohol at 20 - 30℃; for 3h; Wittig Olefination; Inert atmosphere;
Stage #2: With hydrogenchloride; palladium diacetate In isopropyl alcohol at 60℃; pH=7 - 8;
86.3%
Stage #1: (Z)-3-methyl-4-oxobut-2-enoic acid; 5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide With sodium hydroxide In isopropyl alcohol at 20 - 30℃; for 3h; Wittig Olefination; Inert atmosphere;
Stage #2: With hydrogenchloride; palladium diacetate In isopropyl alcohol at 60℃; pH=7-8; Inert atmosphere;
86.3%
5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

4-formyl-2-[3-oxo-2-methyl-(1E)-propenyl]pyridine
188554-16-7

4-formyl-2-[3-oxo-2-methyl-(1E)-propenyl]pyridine

2-[(1E,3E,5E,7E)-2,6-dimethyl-8-(2,6,6-trimethylcyclohex-1-en-1-yl)octa-1,3,5,7-tetraen-1-yl]-4-[(1E,3E,5E)-4-methyl-6-(2,6,6-trimethylcyclohex-1-en-1-yl)hexa-1,3,5-trien-1-yl]pyridine
188554-17-8

2-[(1E,3E,5E,7E)-2,6-dimethyl-8-(2,6,6-trimethylcyclohex-1-en-1-yl)octa-1,3,5,7-tetraen-1-yl]-4-[(1E,3E,5E)-4-methyl-6-(2,6,6-trimethylcyclohex-1-en-1-yl)hexa-1,3,5-trien-1-yl]pyridine

Conditions
ConditionsYield
With sodium ethanolate In ethanol76%
5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

(Z)-3-Iodo-4-oxo-but-2-enoic acid ethyl ester
174836-86-3

(Z)-3-Iodo-4-oxo-but-2-enoic acid ethyl ester

(2Z,4E,6E,8E)-3-Iodo-7-methyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenoic acid ethyl ester
743421-41-2

(2Z,4E,6E,8E)-3-Iodo-7-methyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenoic acid ethyl ester

Conditions
ConditionsYield
Stage #1: (Z)-3-Iodo-4-oxo-but-2-enoic acid ethyl ester With 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone; lithium diisopropyl amide
Stage #2: 5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide Further stages.;
74%
5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

bis(3-formyl-3-methyl-2-propenyl) sulfide
251291-80-2

bis(3-formyl-3-methyl-2-propenyl) sulfide

retinyl sulfide
268728-47-8

retinyl sulfide

Conditions
ConditionsYield
Stage #1: 5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide; bis(3-formyl-3-methyl-2-propenyl) sulfide In DMF (N,N-dimethyl-formamide) at -20℃;
Stage #2: With sodium methylate In DMF (N,N-dimethyl-formamide) at -20 - 20℃; for 3.5h;
68%
4-t-butyldimethylsilyloxy-2-butynal
75859-97-1

4-t-butyldimethylsilyloxy-2-butynal

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

tert-Butyl-dimethyl-[(4Z,6E,8E)-7-methyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-4,6,8-trien-2-ynyloxy]-silane
75867-37-7

tert-Butyl-dimethyl-[(4Z,6E,8E)-7-methyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-4,6,8-trien-2-ynyloxy]-silane

Conditions
ConditionsYield
With n-butyllithium In tetrahydrofuran for 3h; Ambient temperature;52%
5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

2-methyl-3-[3-(1-methyl-2-oxoethylidene)-cyclohex-1-enyl]-propenal
454442-05-8

2-methyl-3-[3-(1-methyl-2-oxoethylidene)-cyclohex-1-enyl]-propenal

C43H60

C43H60

Conditions
ConditionsYield
With sodium methylate In methanol for 1h;40%
5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

13-[(4R)-4-(β-D-glucopyranosyloxy)-2,6,6-trimethylcyclohex-1-enyl]-2,7,11-trimethyltrideca-2,4,6,8,10,12-hexaenal

13-[(4R)-4-(β-D-glucopyranosyloxy)-2,6,6-trimethylcyclohex-1-enyl]-2,7,11-trimethyltrideca-2,4,6,8,10,12-hexaenal

A

(all-E)-(3R)-3-(β-D-glucopyranosyloxy)-β,β-carotene
135589-15-0

(all-E)-(3R)-3-(β-D-glucopyranosyloxy)-β,β-carotene

B

(9'Z)-(3R)-3-(β-D-glucopyranosyloxy)-β,β-carotene

(9'Z)-(3R)-3-(β-D-glucopyranosyloxy)-β,β-carotene

Conditions
ConditionsYield
Stage #1: 5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide; 13-[(4R)-4-(β-D-glucopyranosyloxy)-2,6,6-trimethylcyclohex-1-enyl]-2,7,11-trimethyltrideca-2,4,6,8,10,12-hexaenal With sodium methylate In methanol; dichloromethane at 20℃; for 3h; Wittig condensation;
Stage #2: With Dowex 50W-X8 (H+) In methanol; dichloromethane at 20℃; for 0.333333h;
A 28%
B 10%
(2E,4E,6E,8E,10E,12E,14E)-2,7,11,15,19-pentamethylicosa-2,4,6,8,10,12,14,18-octaenal
103956-99-6, 1071-52-9

(2E,4E,6E,8E,10E,12E,14E)-2,7,11,15,19-pentamethylicosa-2,4,6,8,10,12,14,18-octaenal

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

trans-gamma-Carotene
472-93-5

trans-gamma-Carotene

Conditions
ConditionsYield
With sodium methylate In methanol; N,N-dimethyl-formamide
2-Methyl-4-(thioacetyl)-2-(E)-butenal
72053-20-4

2-Methyl-4-(thioacetyl)-2-(E)-butenal

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

11-cis-Retinylthioacetat
72053-19-1, 72075-18-4

11-cis-Retinylthioacetat

Conditions
ConditionsYield
(i) nBuLi, (ii) /BRN= 2075468/; Multistep reaction;
2-Methyl-4-(thioacetyl)-2-(E)-butenal
72053-20-4

2-Methyl-4-(thioacetyl)-2-(E)-butenal

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

11-trans-Retinylthioacetat
72053-19-1, 72075-18-4

11-trans-Retinylthioacetat

Conditions
ConditionsYield
(i) nBuLi, (ii) /BRN= 2075468/; Multistep reaction;
acetic acid trans-4-oxo-but-2-enyl ester
38982-39-7

acetic acid trans-4-oxo-but-2-enyl ester

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

Acetic acid (2E,4E,6E,8E)-7-methyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenyl ester

Acetic acid (2E,4E,6E,8E)-7-methyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenyl ester

Conditions
ConditionsYield
With n-butyllithium In tetrahydrofuran; hexane 1.) 1 h, -60 deg C; 2.) 2 h to RT; Yield given;
5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

ethyl trans-13,14-dihydro-13-desmethyl-13,14-methyleneretinoate
89887-40-1

ethyl trans-13,14-dihydro-13-desmethyl-13,14-methyleneretinoate

ethyl cis-13,14-dihydro-13-desmethyl-13,14-methyleneretinoate
89827-99-6

ethyl cis-13,14-dihydro-13-desmethyl-13,14-methyleneretinoate

Conditions
ConditionsYield
With potassium tert-butylate benzene, 1) 15 min 2) 8h, r.t.; Yield given. Multistep reaction. Yields of byproduct given;
1-Carbethoxy-2-formyl-2-methyl-cyclopropan
20417-63-4

1-Carbethoxy-2-formyl-2-methyl-cyclopropan

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

ethyl trans-13,14-dihydro-13,14-methyleneretinoate
89887-37-6

ethyl trans-13,14-dihydro-13,14-methyleneretinoate

ethyl cis-13,14-dihydro-13,14-methyleneretinoate
89827-98-5

ethyl cis-13,14-dihydro-13,14-methyleneretinoate

Conditions
ConditionsYield
With potassium tert-butylate benzene, 1) 15 min 2) 22h, r.t.; Yield given. Multistep reaction. Yields of byproduct given;
4,4-dimethoxy-3-methyl-but-2-en-1-al
62285-97-6

4,4-dimethoxy-3-methyl-but-2-en-1-al

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

2-((1E,3E,5E,7E)-9,9-Dimethoxy-3,8-dimethyl-nona-1,3,5,7-tetraenyl)-1,3,3-trimethyl-cyclohexene

2-((1E,3E,5E,7E)-9,9-Dimethoxy-3,8-dimethyl-nona-1,3,5,7-tetraenyl)-1,3,3-trimethyl-cyclohexene

Conditions
ConditionsYield
With sodium ethanolate In ethanol; dichloromethane at 0℃; for 1h;
5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

4-(tert-butyldimethylsilyloxy)-2-methylbutanal
115797-15-4

4-(tert-butyldimethylsilyloxy)-2-methylbutanal

13,14-dihydro-all-trans retinol
115797-14-3

13,14-dihydro-all-trans retinol

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride 1.) Wittig-reaction; Multistep reaction;
5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienylidenetriphenylphosphorane
71987-74-1

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienylidenetriphenylphosphorane

Conditions
ConditionsYield
With phenyllithium In diethyl ether for 0.0833333h; Ambient temperature;
5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

(2E,4E,6E,8E,10E)-2,7,11-trimethyl-12-oxotrideca-2,4,6,8,10-pentaenal
160456-53-1

(2E,4E,6E,8E,10E)-2,7,11-trimethyl-12-oxotrideca-2,4,6,8,10-pentaenal

(all-E)-sintaxanthin
4586-97-4

(all-E)-sintaxanthin

Conditions
ConditionsYield
With sodium hydride In dichloromethane at 20℃; for 48h; Yield given;
(2E,4E,6E)-2,7-dimethyl-2,4,6-octatrienedial
5056-17-7

(2E,4E,6E)-2,7-dimethyl-2,4,6-octatrienedial

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

12'-apo-β-caroten-12'-al
1638-05-7

12'-apo-β-caroten-12'-al

Conditions
ConditionsYield
With sodium hydride In dichloromethane at 20℃; for 64h; Yield given;
With sodium methylate In methanol at 0℃; for 0.5h; Wittig olefination;
5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

4-formyl-2-[3-oxo-2-methyl-(1E)-propenyl]pyridine
188554-16-7

4-formyl-2-[3-oxo-2-methyl-(1E)-propenyl]pyridine

A

2-[(1E,3Z,5E,7E)-2,4-Dimethyl-8-(2,6,6-trimethyl-cyclohex-1-enyl)-octa-1,3,5,7-tetraenyl]-4-[(1E,3E,5E)-4-methyl-6-(2,6,6-trimethyl-cyclohex-1-enyl)-hexa-1,3,5-trienyl]-pyridine

2-[(1E,3Z,5E,7E)-2,4-Dimethyl-8-(2,6,6-trimethyl-cyclohex-1-enyl)-octa-1,3,5,7-tetraenyl]-4-[(1E,3E,5E)-4-methyl-6-(2,6,6-trimethyl-cyclohex-1-enyl)-hexa-1,3,5-trienyl]-pyridine

B

2-[(1E,3Z,5E,7E)-2,6-Dimethyl-8-(2,6,6-trimethyl-cyclohex-1-enyl)-octa-1,3,5,7-tetraenyl]-4-[(1Z,3E,5E)-4-methyl-6-(2,6,6-trimethyl-cyclohex-1-enyl)-hexa-1,3,5-trienyl]-pyridine

2-[(1E,3Z,5E,7E)-2,6-Dimethyl-8-(2,6,6-trimethyl-cyclohex-1-enyl)-octa-1,3,5,7-tetraenyl]-4-[(1Z,3E,5E)-4-methyl-6-(2,6,6-trimethyl-cyclohex-1-enyl)-hexa-1,3,5-trienyl]-pyridine

C

2-[(1E,3E,5E,7E)-2,6-Dimethyl-8-(2,6,6-trimethyl-cyclohex-1-enyl)-octa-1,3,5,7-tetraenyl]-4-[(1Z,3E,5E)-4-methyl-6-(2,6,6-trimethyl-cyclohex-1-enyl)-hexa-1,3,5-trienyl]-pyridine

2-[(1E,3E,5E,7E)-2,6-Dimethyl-8-(2,6,6-trimethyl-cyclohex-1-enyl)-octa-1,3,5,7-tetraenyl]-4-[(1Z,3E,5E)-4-methyl-6-(2,6,6-trimethyl-cyclohex-1-enyl)-hexa-1,3,5-trienyl]-pyridine

D

2-[(1E,3E,5E,7E)-2,6-dimethyl-8-(2,6,6-trimethylcyclohex-1-en-1-yl)octa-1,3,5,7-tetraen-1-yl]-4-[(1E,3E,5E)-4-methyl-6-(2,6,6-trimethylcyclohex-1-en-1-yl)hexa-1,3,5-trien-1-yl]pyridine
188554-17-8

2-[(1E,3E,5E,7E)-2,6-dimethyl-8-(2,6,6-trimethylcyclohex-1-en-1-yl)octa-1,3,5,7-tetraen-1-yl]-4-[(1E,3E,5E)-4-methyl-6-(2,6,6-trimethylcyclohex-1-en-1-yl)hexa-1,3,5-trien-1-yl]pyridine

Conditions
ConditionsYield
With sodium ethanolate 1.) EtOH, room temp., 2.) CH3NO2, reflux; Yield given. Multistep reaction;
5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

(2E)-4-[(tert-butyldiphenylsilyl)oxy]-2-fluorobut-2-enal
186953-22-0

(2E)-4-[(tert-butyldiphenylsilyl)oxy]-2-fluorobut-2-enal

(7E,9E,13E)-tert-butyldiphenylsilyl 13-demethyl-13-fluororetinyl ether
186953-39-9

(7E,9E,13E)-tert-butyldiphenylsilyl 13-demethyl-13-fluororetinyl ether

Conditions
ConditionsYield
With n-butyllithium 1.) THF, hexane, -78 deg C, 2.) THF, hexane, 25 deg C, 5 h; Yield given. Multistep reaction;
5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

N,N-dimethyl-formamide
68-12-2, 33513-42-7

N,N-dimethyl-formamide

(Z)-1-(tert-butyldimethylsilyloxy)-3-iodo-3-methylprop-2-ene
148802-00-0

(Z)-1-(tert-butyldimethylsilyloxy)-3-iodo-3-methylprop-2-ene

A

tert-butyldimethylsilyl Δ13-(Z)-retinyl ether
118304-54-4

tert-butyldimethylsilyl Δ13-(Z)-retinyl ether

B

tert-Butyl-[(2Z,4Z,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenyloxy]-dimethyl-silane
118304-54-4, 118353-70-1

tert-Butyl-[(2Z,4Z,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6,8-tetraenyloxy]-dimethyl-silane

Conditions
ConditionsYield
With potassium tert-butylate; tert.-butyl lithium In diethyl ether; pentane at -75 - 25℃; for 6h; Wittig reaction;
4,4'-diapo-ψ,ψ-carotene-4,4'-dial
13920-19-9, 5056-18-8

4,4'-diapo-ψ,ψ-carotene-4,4'-dial

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

3,7,11,15,20,24,28,32-octamethyl-1,34-bis(2,6,6-trimethylcyclohex-1-enyl)tetratriaconta-1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33-heptadecaene
24513-48-2

3,7,11,15,20,24,28,32-octamethyl-1,34-bis(2,6,6-trimethylcyclohex-1-enyl)tetratriaconta-1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33-heptadecaene

Conditions
ConditionsYield
With sodium hydride In dichloromethane Wittig reaction;67 % Spectr.
6,6'-diapocarotene-6,6'-dial
34561-05-2

6,6'-diapocarotene-6,6'-dial

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide
62285-98-7

5-(2,6,6-trimethylcyclohexenyl)-3-methyl-2,4-pentadienyltriphenylphosphonium bromide

3,9,13,18,22,28-hexamethyl-1,30-bis(2,6,6-trimethylcyclohex-1-enyl)triaconta-1,3,5,7,9,11,13,15,17,19,21,23,25,27,29-pentadecaene

3,9,13,18,22,28-hexamethyl-1,30-bis(2,6,6-trimethylcyclohex-1-enyl)triaconta-1,3,5,7,9,11,13,15,17,19,21,23,25,27,29-pentadecaene

Conditions
ConditionsYield
With sodium hydride In dichloromethane Wittig reaction;66 % Spectr.

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