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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 services. DayangChem can provide different quantities of custom synthesis ch

dihydrotachysterol

Cas:67-96-9

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Sinoway Industrial Co., Ltd.

Why is SINOWAY: 1) Specialized in pharmaceutical and healthcare industrial for 34 years. 2) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days. 4) We have warehouse in USA with quickly shipment . 5) We c

99% up GMP DMF Dihydrotachysterol 67-96-9

Cas:67-96-9

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

Large Stock 99.0% dihydrotachysterol crystalline 67-96-9 Producer

Cas:67-96-9

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

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

Dihydrotachysterol

Cas:67-96-9

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Henan Tianfu Chemical Co., Ltd.

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 Scientific and so on.O

TIANFU CHEM---DIHYDROTACHYSTEROL

Cas:67-96-9

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con

67-96-9 Dihydrotachysterol

Cas:67-96-9

Min.Order:1 Kilogram

FOB Price: $15.0 / 50.0

Type:Trading Company

inquiry

Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients 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 Specialized

Dihydrotachysterol 67-96-9

Cas:67-96-9

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

Dihydrotachysterol CAS:67-96-9 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 intermed

Dihydrotachysterol CAS:67-96-9

Cas:67-96-9

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

Dihydrotachysterol

Cas:67-96-9

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

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

Dihydrotachysterol

Cas:67-96-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter

Dihydrotachysterol

Cas:67-96-9

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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

Dihydrotachysterol

Cas:67-96-9

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM 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. J&H CHEM has some Manufacturing base in Jia

Dihydrotachysterol

Cas:67-96-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Factory Supply dihydrotachysterol crystalline

Cas:67-96-9

Min.Order:0 Metric Ton

Negotiable

Type:Other

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

Dihydrotachysterol

Cas:67-96-9

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

TaiChem Taizhou Limited

Established in May 2015, TaiChem Ltd. is initially invested by a British research and development company and started by PhDs back from aboard. The company is registered in China Medical City (CMC), Taizhou, Jiangsu Province, and the production site

Dihydrotachysterol

Cas:67-96-9

Min.Order:10 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Zibo Dorne chemical technology co. LTD

Product Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,

Dihydrotachysterol

Cas:67-96-9

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

BEST PRICE/dihydrotachysterol CAS NO.67-96-9

Cas:67-96-9

Min.Order:1 Metric Ton

FOB Price: $7.0 / 8.0

Type:Trading Company

inquiry

Chemvon Biotechnology Co. Ltd.

Dihydrotachysterol good supplier /fast delivery / in stock Dihydrotachysterol is a synthetic analog of vitamin D. It is considered as a reduction product of vitamin D2 (ergocalciferol). It stimulates bone mineralization as well as calcium and phosph

Dihydrotachysterol good supplier /fast delivery / in stock

Cas:67-96-9

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

dihydrotachysterol crystalline

Cas:67-96-9

Min.Order:0

Negotiable

Type:Other

inquiry

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

Dihydrotachysterol

Cas:67-96-9

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Koning Pharmchem Co., Ltd.

KONING PHARMCHEM CO., LTD. has committed itself to a strategy of providing a unique service for companies involved in the manufacture of pharmaceuticals, healthcare products, food, cosmetics and other fine chemicals. Our products including but not li

Dihydrotachysterol

Cas:67-96-9

Min.Order:0

Negotiable

Type:Trading Company

inquiry

BOC Sciences

BOC Sciences provides a wide range of research chemicals and biochemicals including inhibitors, building blocks, GMP Products, impurities and metabolites, APIs for Veterinary, Natural Compounds, ADCs, Stem Cell Molecule and chiral compounds.Appearanc

Dihydrotachysterol

Cas:67-96-9

Min.Order:0

Negotiable

Type:Trading Company

inquiry

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

Dihydrotachysterol

Cas:67-96-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Changchun Artel lmport and Export trade company

Supply top quality products with a reasonable price Application:api

67-96-9

Cas:67-96-9

Min.Order:0

Negotiable

Type:Trading Company

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

Dihydrotachysterol

Cas:67-96-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Chemlyte Solutions

Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai

dihydrotachysterol

Cas:67-96-9

Min.Order:0

Negotiable

Type:Other

inquiry

Shanghai Chinqesen Biotechnology Co., Ltd.

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

67-96-9

Cas:67-96-9

Min.Order:0

Negotiable

Type:Trading Company

inquiry

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

Dihydrotachysterol

Cas:67-96-9

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Changzhou Extraordinary Pharmatech co.,LTD

Changzhou Extraordinary Pharmatech co., LTD. As a leading chemical manufacturer and supplier in China.DAS authentication is passed.We can provide the popular precursor chemicals, we have our own strong R & D team, have our own laboratories and fa

Dihydro Tachysterol

Cas:67-96-9

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

3β-hydroxy-9,10-secoergosta-5(E),7(E),10(19),22(E)-tetraene
51744-66-2

3β-hydroxy-9,10-secoergosta-5(E),7(E),10(19),22(E)-tetraene

A

(3S,5E,7E,10R)-9,10-seco-ergosta-5,7,22t-trien-3-ol
65377-91-5

(3S,5E,7E,10R)-9,10-seco-ergosta-5,7,22t-trien-3-ol

B

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

Conditions
ConditionsYield
With bis(cyclopentadienyl)titanium dichloride; lithium aluminium tetrahydride In tetrahydrofuran for 2.5h;A 6.5%
B 86%
With bis(cyclopentadienyl)titanium dichloride In tetrahydrofuran; toluene for 1.5h; Ambient temperature;A 38%
B 57%
dihydrotachysterol2 tert-butyldimethylsilyl ether
142980-94-7, 143060-77-9

dihydrotachysterol2 tert-butyldimethylsilyl ether

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride In tetrahydrofuran for 1h; Ambient temperature;86%
Calciferol
50-14-6

Calciferol

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

Conditions
ConditionsYield
With sodium; butan-1-ol
With pentan-1-ol; sodium
With sodium; glycerol; xylene
With sodium; ethylene glycol; xylene
Multi-step reaction with 2 steps
1: 58 percent / iodine / diethyl ether / 2.5 h
2: 86 percent / LiAlH4, Cp2TiCl2 / tetrahydrofuran / 2.5 h
View Scheme
(3aR)-3ar-Methyl-3c-((1R:4R)-1.4.5-trimethyl-hexen-(2t)-yl)-7-[2-((2S)-5t-hydroxy-2r-methyl-cyclohexyliden-(seqcis))-aethyliden-(seqtrans)]-(7atH)-hexahydro-indan
67-96-9, 807-27-2, 7665-90-9, 34611-22-8, 62777-58-6, 65377-86-8, 65377-91-5, 116559-85-4, 116559-86-5, 143060-73-5

(3aR)-3ar-Methyl-3c-((1R:4R)-1.4.5-trimethyl-hexen-(2t)-yl)-7-[2-((2S)-5t-hydroxy-2r-methyl-cyclohexyliden-(seqcis))-aethyliden-(seqtrans)]-(7atH)-hexahydro-indan

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

Conditions
ConditionsYield
ueber mehrere Stufen;
tachysterol
115-61-7

tachysterol

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

Conditions
ConditionsYield
With ammonia; lithium
With sodium; diethylamine
With sodium; N-methylaniline
tachysterol
115-61-7

tachysterol

A

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

B

toxisterol2 R
104396-98-7

toxisterol2 R

Conditions
ConditionsYield
With ethanol; sodium
With ethanol; sodium Isolierung als O-Allophanoyl-Derivat;
toxisterol2 R
104396-98-7

toxisterol2 R

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

Conditions
ConditionsYield
ueber mehrere Stufen;
tetrachloromethane
56-23-5

tetrachloromethane

Calciferol
50-14-6

Calciferol

ethylene glycol
107-21-1

ethylene glycol

sodium

sodium

A

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

B

(3aR)-3ar-Methyl-3c-((1R:4R)-1.4.5-trimethyl-hexen-(2t)-yl)-7-[2-((2S)-5t-hydroxy-2r-methyl-cyclohexyliden-(seqcis))-aethyliden-(seqtrans)]-(7atH)-hexahydro-indan
67-96-9, 807-27-2, 7665-90-9, 34611-22-8, 62777-58-6, 65377-86-8, 65377-91-5, 116559-85-4, 116559-86-5, 143060-73-5

(3aR)-3ar-Methyl-3c-((1R:4R)-1.4.5-trimethyl-hexen-(2t)-yl)-7-[2-((2S)-5t-hydroxy-2r-methyl-cyclohexyliden-(seqcis))-aethyliden-(seqtrans)]-(7atH)-hexahydro-indan

C

toxisterol2 R
104396-98-7

toxisterol2 R

tetrachloromethane
56-23-5

tetrachloromethane

Calciferol
50-14-6

Calciferol

glycerol
56-81-5

glycerol

sodium

sodium

A

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

B

(3aR)-3ar-Methyl-3c-((1R:4R)-1.4.5-trimethyl-hexen-(2t)-yl)-7-[2-((2S)-5t-hydroxy-2r-methyl-cyclohexyliden-(seqcis))-aethyliden-(seqtrans)]-(7atH)-hexahydro-indan
67-96-9, 807-27-2, 7665-90-9, 34611-22-8, 62777-58-6, 65377-86-8, 65377-91-5, 116559-85-4, 116559-86-5, 143060-73-5

(3aR)-3ar-Methyl-3c-((1R:4R)-1.4.5-trimethyl-hexen-(2t)-yl)-7-[2-((2S)-5t-hydroxy-2r-methyl-cyclohexyliden-(seqcis))-aethyliden-(seqtrans)]-(7atH)-hexahydro-indan

C

toxisterol2 R
104396-98-7

toxisterol2 R

Calciferol
50-14-6

Calciferol

butan-1-ol
71-36-3

butan-1-ol

sodium

sodium

A

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

B

(3aR)-3ar-Methyl-3c-((1R:4R)-1.4.5-trimethyl-hexen-(2t)-yl)-7-[2-((2S)-5t-hydroxy-2r-methyl-cyclohexyliden-(seqcis))-aethyliden-(seqtrans)]-(7atH)-hexahydro-indan
67-96-9, 807-27-2, 7665-90-9, 34611-22-8, 62777-58-6, 65377-86-8, 65377-91-5, 116559-85-4, 116559-86-5, 143060-73-5

(3aR)-3ar-Methyl-3c-((1R:4R)-1.4.5-trimethyl-hexen-(2t)-yl)-7-[2-((2S)-5t-hydroxy-2r-methyl-cyclohexyliden-(seqcis))-aethyliden-(seqtrans)]-(7atH)-hexahydro-indan

C

toxisterol2 R
104396-98-7

toxisterol2 R

5,6-trans-ergocalciferol

5,6-trans-ergocalciferol

A

(3S,5E,7E,10R)-9,10-seco-ergosta-5,7,22t-trien-3-ol
65377-91-5

(3S,5E,7E,10R)-9,10-seco-ergosta-5,7,22t-trien-3-ol

B

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

Conditions
ConditionsYield
With Wilkinson's catalyst; benzene Hydrogenation;
O-<3.5-dinitro-4-methyl-benzoyl>-tachysterol2

O-<3.5-dinitro-4-methyl-benzoyl>-tachysterol2

A

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

B

toxisterol2 R
104396-98-7

toxisterol2 R

Conditions
ConditionsYield
With propan-1-ol; sodium
With propan-1-ol; sodium Isolierung als O-Allophanoyl-Derivat;
propan-1-ol
71-23-8

propan-1-ol

tachysterol
115-61-7

tachysterol

sodium

sodium

A

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

B

toxisterol2 R
104396-98-7

toxisterol2 R

ethanol
64-17-5

ethanol

tachysterol
115-61-7

tachysterol

sodium

sodium

A

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

B

toxisterol2 R
104396-98-7

toxisterol2 R

(2E)-2-<(2'S,5'S)-5'-<(tert-butyldimethylsilyl)oxy>-2'-methylcyclohexylidene>ethanol
142980-92-5

(2E)-2-<(2'S,5'S)-5'-<(tert-butyldimethylsilyl)oxy>-2'-methylcyclohexylidene>ethanol

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

Conditions
ConditionsYield
Multi-step reaction with 3 steps
2: 85 percent / n-butyl lithium / hexane; tetrahydrofuran / a) -78 deg C, 30 min, b) -70 deg C, 2 h, c) to r.t., 2 h
3: 86 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 1 h / Ambient temperature
View Scheme
(2E)-ethyl <(2'S,5'S)-5'-<(tert-butyldimethylsilyl)oxy>-2'-methylcyclohexylidene>ethanoate
142980-91-4

(2E)-ethyl <(2'S,5'S)-5'-<(tert-butyldimethylsilyl)oxy>-2'-methylcyclohexylidene>ethanoate

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 99 percent / diisobutylaluminium hydride / toluene / 1 h / -78 °C
3: 85 percent / n-butyl lithium / hexane; tetrahydrofuran / a) -78 deg C, 30 min, b) -70 deg C, 2 h, c) to r.t., 2 h
4: 86 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 1 h / Ambient temperature
View Scheme
(2E)-<2-<(2'S,5'S)-5'-<(tert-butyldimethylsilyl)oxy>-2'-methylcyclohexylidene>ethyl>diphenylphosphine oxide
141277-81-8

(2E)-<2-<(2'S,5'S)-5'-<(tert-butyldimethylsilyl)oxy>-2'-methylcyclohexylidene>ethyl>diphenylphosphine oxide

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 85 percent / n-butyl lithium / hexane; tetrahydrofuran / a) -78 deg C, 30 min, b) -70 deg C, 2 h, c) to r.t., 2 h
2: 86 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 1 h / Ambient temperature
View Scheme
ethyl <(1'R,2'S,5'S)-1',5-'dihydroxy-2'-methylcyclohexyl>ethanoate
142980-89-0

ethyl <(1'R,2'S,5'S)-1',5-'dihydroxy-2'-methylcyclohexyl>ethanoate

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: 90 percent / imidazole / dimethylformamide / 24 h
2: 93 percent / bis<2,2,2-trifluoro-1-phenyl-1-(trifluoromethyl)ethoxy>diphenylsulfurane / CCl4 / 70 h / Ambient temperature
3: 99 percent / diisobutylaluminium hydride / toluene / 1 h / -78 °C
5: 85 percent / n-butyl lithium / hexane; tetrahydrofuran / a) -78 deg C, 30 min, b) -70 deg C, 2 h, c) to r.t., 2 h
6: 86 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 1 h / Ambient temperature
View Scheme
ethyl <(1'R,2'S,5'S)-6-hydroperoxy-2',6-'dimethylbicyclo<3.2.1>-7'-oxaoctyl>ethanoate
142980-87-8, 143060-75-7

ethyl <(1'R,2'S,5'S)-6-hydroperoxy-2',6-'dimethylbicyclo<3.2.1>-7'-oxaoctyl>ethanoate

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

Conditions
ConditionsYield
Multi-step reaction with 8 steps
1: 85 percent / pyridine, DMAP / CH2Cl2 / a) 0 deg C, 1 h, b) r.t., 2 h, c) reflux, 12 h
2: 87 percent / 0.2 M NaOEt / ethanol / 3 h / 0 °C
3: 90 percent / imidazole / dimethylformamide / 24 h
4: 93 percent / bis<2,2,2-trifluoro-1-phenyl-1-(trifluoromethyl)ethoxy>diphenylsulfurane / CCl4 / 70 h / Ambient temperature
5: 99 percent / diisobutylaluminium hydride / toluene / 1 h / -78 °C
7: 85 percent / n-butyl lithium / hexane; tetrahydrofuran / a) -78 deg C, 30 min, b) -70 deg C, 2 h, c) to r.t., 2 h
8: 86 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 1 h / Ambient temperature
View Scheme
ethyl <(1'R,2'S,5'S)-5'-acetoxy-1'-hydroxy-2'-methylcyclohexyl>ethanoate
142980-88-9

ethyl <(1'R,2'S,5'S)-5'-acetoxy-1'-hydroxy-2'-methylcyclohexyl>ethanoate

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1: 87 percent / 0.2 M NaOEt / ethanol / 3 h / 0 °C
2: 90 percent / imidazole / dimethylformamide / 24 h
3: 93 percent / bis<2,2,2-trifluoro-1-phenyl-1-(trifluoromethyl)ethoxy>diphenylsulfurane / CCl4 / 70 h / Ambient temperature
4: 99 percent / diisobutylaluminium hydride / toluene / 1 h / -78 °C
6: 85 percent / n-butyl lithium / hexane; tetrahydrofuran / a) -78 deg C, 30 min, b) -70 deg C, 2 h, c) to r.t., 2 h
7: 86 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 1 h / Ambient temperature
View Scheme
ethyl <(1'R,2'S,5'S)-5'-<(tert-butyldimethylsilyl)oxy>-1'-hydroxy-2'-methylcyclohexyl>ethanoate
142980-90-3

ethyl <(1'R,2'S,5'S)-5'-<(tert-butyldimethylsilyl)oxy>-1'-hydroxy-2'-methylcyclohexyl>ethanoate

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 93 percent / bis<2,2,2-trifluoro-1-phenyl-1-(trifluoromethyl)ethoxy>diphenylsulfurane / CCl4 / 70 h / Ambient temperature
2: 99 percent / diisobutylaluminium hydride / toluene / 1 h / -78 °C
4: 85 percent / n-butyl lithium / hexane; tetrahydrofuran / a) -78 deg C, 30 min, b) -70 deg C, 2 h, c) to r.t., 2 h
5: 86 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 1 h / Ambient temperature
View Scheme
Ergosterol
57-87-4

Ergosterol

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: Irradiation.UV-Licht
2: sodium; N-methyl-aniline
View Scheme
Multi-step reaction with 2 steps
1: benzene / Irradiation.mit UV-Licht (Magnesium-Funken); Isolierung ueber das O-<3.5-Dinitro-4-methyl-benzoyl>-Derivat oder ueber das O-Acetyl-Derivat des Citraconsaeure-anhydrid-Addukts
2: sodium; ethanol / Isolierung als O-Allophanoyl-Derivat
View Scheme
pyridine
110-86-1

pyridine

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

acetic anhydride
108-24-7

acetic anhydride

(3S,5E,7E,10S)-3-acetoxy-9,10-seco-ergosta-5,7,22t-triene
71045-54-0

(3S,5E,7E,10S)-3-acetoxy-9,10-seco-ergosta-5,7,22t-triene

Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

cyclohexanone
108-94-1

cyclohexanone

(6Ξ,10S)-9,10-seco-8ξ-ergosta-4,6,22t-trien-3-one semicarbazone

(6Ξ,10S)-9,10-seco-8ξ-ergosta-4,6,22t-trien-3-one semicarbazone

Conditions
ConditionsYield
With aluminum isopropoxide; toluene Behandeln des Reaktionsprodukts mit Semicarbazid-hydrochlorid und Kaliumacetat in wss. Methanol;
Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

(1R,3aR,7aR)-7a-Methyl-1-((E)-(1R,4R)-1,4,5-trimethyl-hex-2-enyl)-octahydro-inden-4-one
55812-80-1, 55870-05-8, 70144-73-9

(1R,3aR,7aR)-7a-Methyl-1-((E)-(1R,4R)-1,4,5-trimethyl-hex-2-enyl)-octahydro-inden-4-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
2: CrO3; acetic acid
View Scheme
Dihydrotachysterol2
67-96-9

Dihydrotachysterol2

2,3,3a,4,5,6,7,7aβ-octahydro-7aα-methyl-1R-(1α,1R,4R,5-trimethyl-2E-hexenyl)-4H-inden-4-one semicarbazide
2234-73-3

2,3,3a,4,5,6,7,7aβ-octahydro-7aα-methyl-1R-(1α,1R,4R,5-trimethyl-2E-hexenyl)-4H-inden-4-one semicarbazide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
2: CrO3; acetic acid
View Scheme

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