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
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inquiryDihydrotachysterol 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
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inquiryHangzhou 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
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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,
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inquiryhigh 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
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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
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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
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
B
Dihydrotachysterol2
Conditions | Yield |
---|---|
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
Dihydrotachysterol2
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride In tetrahydrofuran for 1h; Ambient temperature; | 86% |
Conditions | Yield |
---|---|
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
Dihydrotachysterol2
Conditions | Yield |
---|---|
ueber mehrere Stufen; |
Conditions | Yield |
---|---|
With ammonia; lithium | |
With sodium; diethylamine | |
With sodium; N-methylaniline |
Conditions | Yield |
---|---|
With ethanol; sodium | |
With ethanol; sodium Isolierung als O-Allophanoyl-Derivat; |
toxisterol2 R
Dihydrotachysterol2
Conditions | Yield |
---|---|
ueber mehrere Stufen; |
tetrachloromethane
Calciferol
ethylene glycol
A
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
C
toxisterol2 R
tetrachloromethane
Calciferol
glycerol
A
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
C
toxisterol2 R
Calciferol
butan-1-ol
A
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
C
toxisterol2 R
A
(3S,5E,7E,10R)-9,10-seco-ergosta-5,7,22t-trien-3-ol
B
Dihydrotachysterol2
Conditions | Yield |
---|---|
With Wilkinson's catalyst; benzene Hydrogenation; |
A
Dihydrotachysterol2
B
toxisterol2 R
Conditions | Yield |
---|---|
With propan-1-ol; sodium | |
With propan-1-ol; sodium Isolierung als O-Allophanoyl-Derivat; |
(2E)-2-<(2'S,5'S)-5'-<(tert-butyldimethylsilyl)oxy>-2'-methylcyclohexylidene>ethanol
Dihydrotachysterol2
Conditions | Yield |
---|---|
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
Dihydrotachysterol2
Conditions | Yield |
---|---|
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
Dihydrotachysterol2
Conditions | Yield |
---|---|
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
Dihydrotachysterol2
Conditions | Yield |
---|---|
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
Dihydrotachysterol2
Conditions | Yield |
---|---|
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
Dihydrotachysterol2
Conditions | Yield |
---|---|
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
Dihydrotachysterol2
Conditions | Yield |
---|---|
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 |
Conditions | Yield |
---|---|
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
Dihydrotachysterol2
acetic anhydride
(3S,5E,7E,10S)-3-acetoxy-9,10-seco-ergosta-5,7,22t-triene
Conditions | Yield |
---|---|
With aluminum isopropoxide; toluene Behandeln des Reaktionsprodukts mit Semicarbazid-hydrochlorid und Kaliumacetat in wss. Methanol; |
Dihydrotachysterol2
(1R,3aR,7aR)-7a-Methyl-1-((E)-(1R,4R)-1,4,5-trimethyl-hex-2-enyl)-octahydro-inden-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 2: CrO3; acetic acid View Scheme |
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
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 2: CrO3; acetic acid View Scheme |
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