Hanways Chempharm Co., Limited, the former is Hubei Hanways Pharchem CO.,Limited, set up in 2009 in Wuhan, China. We specialize in sourcing and supplying APIs, pharmaceutical intermediates, and fine chemicals for worldwide markets. The founder ha
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inquiryUnique advantages for Estra-4,9-diene-3,17-dione Cas 5173-46-6 Guaranteed the purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White Powder Storage:Refrigerator Package:1kg/foil
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inquiryEstra-4,9-diene-3,17-dione CAS No.:5173-46-6 Name: Estra-4,9-diene-3,17-dione Synonyms: 19-Norandrosta-4,9-diene-3,17-dione Molecular Structure Molecular Formula: C19H20O2
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inquiryThe 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
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
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inquiryName:Estra-4,9-diene-3,17-dione The alias:4,9-ESTRADIEN-3,17-DIONE;4,9-ESTRADIENE-3,17-DIONE; CAS NO:5173-46-6 EINECS NO:610-717-6 Molecular formula:C18H22O2 Molecular weight:270.37 Product Quality 12 years of chemical raw materials Matur
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inquiryCAS: 5173-46-6 EINECS: 610-717-6 Chemical formula: C18H22O2 Molecular weight: 270.37 InchI: InchI=1/C18H22O2/c1-18-9-8-14-13-5-3-12 (19) 10-11 (13) 2-4-15 (14) 16 (18) 6-7-17 (18) 20/h10,15-16H, 2-9H2,1H3 Density: 1.16 ± 0.1 g/cm3 (Predicted)
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inquiryOur 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
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inquiryAdvantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the R&
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inquiryEstra-4,9-diene-3,17-dione CAS:5173-46-6 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
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inquiryHello, 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
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inquiryHenan 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
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inquiryA substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
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inquiryProName:High purity Estra-4,9-diene-3,17-dione... CasNo:5173-46-6 Molecular Formula:C19H20O2 Appearance:detailed see specifications Application:Estra-4,9-diene-3,17-dione CAS No.:517... DeliveryTime:Check with us according to inquiry qua... P
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inquiryConditions | Yield |
---|---|
With tetrapropylammonium perruthennate for 3h; | 98% |
With Jones reagent In acetone at 0℃; Jones Oxidation; | 97% |
With tert.-butylhydroperoxide; 3 A molecular sieve; zircornium(IV) n-propoxide In dichloromethane for 17h; | 90% |
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In toluene for 0.75h; Reflux; | 61% |
With toluene-4-sulfonic acid | |
With phosphoric acid In dichloromethane; water |
Conditions | Yield |
---|---|
With piperdinium acetate In toluene for 16h; Reflux; | A 36.4% B 36.6% |
(3aS,7aS)-4-(3,7-Dioxo-octyl)-7a-methyl-hexahydro-indene-1,5-dione
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
With piperdinium acetate | |
Multi-step reaction with 2 steps 1: piperidine*AcOH 2: TsOH View Scheme |
3S,6aS,3-(4-oxo-1-pentyl)-6a-methyl-1,2,3,5,6,6a-hexahydrocyclopenta[f][1]benzopyran-7(8H)-one
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 2: piperidine*AcOH View Scheme | |
Multi-step reaction with 3 steps 2: piperidine*AcOH 3: TsOH View Scheme |
Conditions | Yield |
---|---|
With phosphoric acid; sulfuric acid In dichloromethane; isopropyl alcohol |
(+)-4,5-seco-estr-9-ene-3,5,17-trione
potassium tert-butylate
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
With sodium chloride; sodium acetate; acetic acid In hexane; water; acetone; toluene; tert-butyl alcohol |
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: potassium tert-butylate / toluene; tert-butyl alcohol / 5 h / 20 °C 2: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / 20 °C 3: Jones reagent / acetone / 0 °C View Scheme |
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / 20 °C 2: Jones reagent / acetone / 0 °C View Scheme |
(S)-Halos-Parish ketone
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 11 steps 1.1: sodium tetrahydroborate / ethanol / 4 h / -15 °C 2.1: 1H-imidazole / N,N-dimethyl-formamide / 18 h / 0 - 20 °C 3.1: sodium hydride / mineral oil; dimethyl sulfoxide / 3 h / 50 °C 3.2: 2 h 4.1: sodium tetrahydroborate; nickel(II) chloride hexahydrate / methanol / 1 h / -90 - -70 °C 5.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 6.1: sodium methylate / methanol / 1.5 h / Reflux 7.1: sodium hydride / mineral oil; dimethyl sulfoxide / 4 h / 20 °C 7.2: 17 h / 20 °C 8.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 9.1: potassium tert-butylate / toluene; tert-butyl alcohol / 5 h / 20 °C 10.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / 20 °C 11.1: Jones reagent / acetone / 0 °C View Scheme | |
Multi-step reaction with 11 steps 1.1: sodium tetrahydroborate / ethanol / 4 h / -15 °C 2.1: 1H-imidazole / N,N-dimethyl-formamide / 18 h / 0 - 20 °C 3.1: sodium hydride / mineral oil; dimethyl sulfoxide / 4 h / 20 °C 3.2: 17 h / 20 °C 4.1: sodium tetrahydroborate; nickel(II) chloride hexahydrate / methanol / 1 h / -90 - -70 °C 5.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 6.1: sodium methylate / methanol / 1.5 h / Reflux 7.1: sodium hydride / mineral oil; dimethyl sulfoxide / 4 h / 20 °C 7.2: 17 h / 20 °C 8.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 9.1: potassium tert-butylate / toluene; tert-butyl alcohol / 5 h / 20 °C 10.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / 20 °C 11.1: Jones reagent / acetone / 0 °C View Scheme |
(1S,7aS)-1-hydroxy-7a-methyl-2,3,7,7a-tetrahydro-1H-inden-5(6H)-one
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 10 steps 1.1: 1H-imidazole / N,N-dimethyl-formamide / 18 h / 0 - 20 °C 2.1: sodium hydride / mineral oil; dimethyl sulfoxide / 3 h / 50 °C 2.2: 2 h 3.1: sodium tetrahydroborate; nickel(II) chloride hexahydrate / methanol / 1 h / -90 - -70 °C 4.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 5.1: sodium methylate / methanol / 1.5 h / Reflux 6.1: sodium hydride / mineral oil; dimethyl sulfoxide / 4 h / 20 °C 6.2: 17 h / 20 °C 7.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 8.1: potassium tert-butylate / toluene; tert-butyl alcohol / 5 h / 20 °C 9.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / 20 °C 10.1: Jones reagent / acetone / 0 °C View Scheme | |
Multi-step reaction with 10 steps 1.1: 1H-imidazole / N,N-dimethyl-formamide / 18 h / 0 - 20 °C 2.1: sodium hydride / mineral oil; dimethyl sulfoxide / 4 h / 20 °C 2.2: 17 h / 20 °C 3.1: sodium tetrahydroborate; nickel(II) chloride hexahydrate / methanol / 1 h / -90 - -70 °C 4.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 5.1: sodium methylate / methanol / 1.5 h / Reflux 6.1: sodium hydride / mineral oil; dimethyl sulfoxide / 4 h / 20 °C 6.2: 17 h / 20 °C 7.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 8.1: potassium tert-butylate / toluene; tert-butyl alcohol / 5 h / 20 °C 9.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / 20 °C 10.1: Jones reagent / acetone / 0 °C View Scheme |
(1S,7aS)-1-((tert-butyldimethylsilyl)oxy)-7a-methyl-1,2,3,6,7,7a-hexahydro-5H-inden-5-one
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 9 steps 1.1: sodium hydride / mineral oil; dimethyl sulfoxide / 3 h / 50 °C 1.2: 2 h 2.1: sodium tetrahydroborate; nickel(II) chloride hexahydrate / methanol / 1 h / -90 - -70 °C 3.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 4.1: sodium methylate / methanol / 1.5 h / Reflux 5.1: sodium hydride / mineral oil; dimethyl sulfoxide / 4 h / 20 °C 5.2: 17 h / 20 °C 6.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 7.1: potassium tert-butylate / toluene; tert-butyl alcohol / 5 h / 20 °C 8.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / 20 °C 9.1: Jones reagent / acetone / 0 °C View Scheme | |
Multi-step reaction with 9 steps 1.1: sodium hydride / mineral oil; dimethyl sulfoxide / 4 h / 20 °C 1.2: 17 h / 20 °C 2.1: sodium tetrahydroborate; nickel(II) chloride hexahydrate / methanol / 1 h / -90 - -70 °C 3.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 4.1: sodium methylate / methanol / 1.5 h / Reflux 5.1: sodium hydride / mineral oil; dimethyl sulfoxide / 4 h / 20 °C 5.2: 17 h / 20 °C 6.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 7.1: potassium tert-butylate / toluene; tert-butyl alcohol / 5 h / 20 °C 8.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / 20 °C 9.1: Jones reagent / acetone / 0 °C View Scheme |
1-(tert-butyldimethylsilyloxy)-7a-methyl-4-(2-(2-methyl-1,3-dioxolane-2-yl)ethyl)-2,3,5,6,7,7a-tetrahydro-1H-inden-5(6H)-one
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1.1: sodium tetrahydroborate; nickel(II) chloride hexahydrate / methanol / 1 h / -90 - -70 °C 2.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 3.1: sodium methylate / methanol / 1.5 h / Reflux 4.1: sodium hydride / mineral oil; dimethyl sulfoxide / 4 h / 20 °C 4.2: 17 h / 20 °C 5.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 6.1: potassium tert-butylate / toluene; tert-butyl alcohol / 5 h / 20 °C 7.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / 20 °C 8.1: Jones reagent / acetone / 0 °C View Scheme |
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 2.1: sodium methylate / methanol / 1.5 h / Reflux 3.1: sodium hydride / mineral oil; dimethyl sulfoxide / 4 h / 20 °C 3.2: 17 h / 20 °C 4.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 5.1: potassium tert-butylate / toluene; tert-butyl alcohol / 5 h / 20 °C 6.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / 20 °C 7.1: Jones reagent / acetone / 0 °C View Scheme |
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1.1: sodium methylate / methanol / 1.5 h / Reflux 2.1: sodium hydride / mineral oil; dimethyl sulfoxide / 4 h / 20 °C 2.2: 17 h / 20 °C 3.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 4.1: potassium tert-butylate / toluene; tert-butyl alcohol / 5 h / 20 °C 5.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / 20 °C 6.1: Jones reagent / acetone / 0 °C View Scheme |
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: sodium hydride / mineral oil; dimethyl sulfoxide / 4 h / 20 °C 1.2: 17 h / 20 °C 2.1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 3.1: potassium tert-butylate / toluene; tert-butyl alcohol / 5 h / 20 °C 4.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / 20 °C 5.1: Jones reagent / acetone / 0 °C View Scheme |
<3aS-(3aα,9aα,9bβ)>-3β-((tert-butyldimethylsilyl)oxy)-3aβ-methyl-6-<2-(2-methyl-1,3-dioxolan-2-yl)ethyl>-1,2,3,3a,4,5,8,9,9a,9b-decahydro-7H-benzinden-7-one
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: pyridinium p-toluenesulfonate / acetone; water / 5 h / 60 °C 2: potassium tert-butylate / toluene; tert-butyl alcohol / 5 h / 20 °C 3: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / 20 °C 4: Jones reagent / acetone / 0 °C View Scheme |
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: magnesium / ethylene dibromide; tetrahydrofuran / 2 h / Reflux 1.2: 1.5 h / Cooling with ice 2.1: Jones reagent / acetone / 0.5 h / 0 - 20 °C 3.1: piperdinium acetate / toluene / 16 h / Reflux View Scheme | |
Multi-step reaction with 4 steps 1.1: magnesium / ethylene dibromide; tetrahydrofuran / 2 h / Reflux 1.2: 1.5 h / Cooling with ice 2.1: Jones reagent / acetone / 0.5 h / 0 - 20 °C 3.1: piperdinium acetate / toluene / 16 h / Reflux 4.1: toluene-4-sulfonic acid / toluene / 0.75 h / Reflux View Scheme |
1-chloro-4-(1,3-dioxolane)-n-pentane
A
4,9-Androstadiene-3,17-dione
B
estra-4,9-diene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: magnesium / ethylene dibromide; tetrahydrofuran / 2 h / Reflux 1.2: 1.5 h / Cooling with ice 2.1: Jones reagent / acetone / 0.5 h / 0 - 20 °C 3.1: piperdinium acetate / toluene / 16 h / Reflux View Scheme |
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: Jones reagent / acetone / 0.5 h / 0 - 20 °C 2: piperdinium acetate / toluene / 16 h / Reflux View Scheme | |
Multi-step reaction with 3 steps 1: Jones reagent / acetone / 0.5 h / 0 - 20 °C 2: piperdinium acetate / toluene / 16 h / Reflux 3: toluene-4-sulfonic acid / toluene / 0.75 h / Reflux View Scheme |
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Stage #1: C23H34O4 With hydrogenchloride In water; acetone for 3h; Reflux; Stage #2: With potassium tert-butylate In isopropyl alcohol; toluene for 2h; Reagent/catalyst; Solvent; Reflux; | 67.1 g |
methanol
4,9-Androstadiene-3,17-dione
3,3-dimethoxy-estra-5(10),9(11)-diene-17-one
Conditions | Yield |
---|---|
With acetyl chloride at -20℃; for 2h; | 97.5% |
With tetrachlorosilane In hexane at 2 - 10℃; Product distribution / selectivity; Industry scale; | |
With acetyl chloride In hexane at 5 - 20℃; Product distribution / selectivity; Industry scale; | |
tetrachlorosilane In hexane at 2 - 15℃; for 1 - 1.5h; Product distribution / selectivity; | |
acetyl chloride In hexane at 5 - 20℃; for 1.35h; Product distribution / selectivity; |
Conditions | Yield |
---|---|
With triethylamine In ethyl acetate at 30 - 35℃; for 20h; Reagent/catalyst; Time; Solvent; | 95.1% |
Conditions | Yield |
---|---|
With lithium diisopropyl amide In tetrahydrofuran at -40 - 20℃; for 0.666667h; Reagent/catalyst; Temperature; Industrial scale; | 87.5% |
Conditions | Yield |
---|---|
With methanol; sodium tetrahydroborate In dichloromethane at -78℃; for 5h; | 87% |
With zygowilliopsis sp. WY7905 In aq. phosphate buffer at 30℃; for 24h; pH=8; Enzymatic reaction; stereoselective reaction; | 61% |
With sodium borohydrid; acetic acid In tetrahydrofuran; methanol | |
With sodium borohydrid; acetic acid In tetrahydrofuran; methanol |
Conditions | Yield |
---|---|
With hydrogenchloride In water for 1h; Reflux; Green chemistry; | 80% |
Conditions | Yield |
---|---|
With hydrogenchloride In water for 1h; Reagent/catalyst; Solvent; Reflux; Green chemistry; | 77% |
4,9-Androstadiene-3,17-dione
ethylene glycol
3,3:17,17-bis(ethylenedioxy)-estra-5(10),9(11)-diene
Conditions | Yield |
---|---|
With pyridine hydrochloride; sodium 1.) heptane, reflux, 2.) MeOH, 15 min; Yield given. Multistep reaction; |
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
With sodium tetrahydroborate In tetrahydrofuran; methanol at -10℃; | |
With sodium tetrahydroborate In methanol; water for 0.5h; Cooling with ice; |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 View Scheme |
4,9-Androstadiene-3,17-dione
(8S,13S,14S,17R)-17-ethynyl-13-methyl-1,2,4,6,7,8,12,13,14,15,16,17-dodecahydrospiro[cyclopenta[a]phenanthrene-3,2’-[1,3]dioxolan]-17-ol
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 3: KOtBu / tetrahydrofuran View Scheme |
4,9-Androstadiene-3,17-dione
3-(ethylenedioxy)estra-5α,10α-epoxy-17α-ethynyl-17β-hydroxy-9(11)-ene
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 3: KOtBu / tetrahydrofuran 4: H2O2, trifluoroacetophenone, Py / CH2Cl2 View Scheme |
4,9-Androstadiene-3,17-dione
3,3-ethylenedioxy-5α,17β-dihydroxy-11β-[4-(N,N-dimethylamino)phenyl]-19-nor-17α-pregn-9-ene-21-ethyne
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 3: KOtBu / tetrahydrofuran 4: H2O2, trifluoroacetophenone, Py / CH2Cl2 5: Mg, CuCl View Scheme |
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 3: KOtBu / tetrahydrofuran 4: H2O2, trifluoroacetophenone, Py / CH2Cl2 5: Mg, CuCl 6: CuI, Pd(OAc)2, PPh3 / various solvent(s) / Heating 7: H2SO4 / acetone View Scheme |
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 3: KOtBu / tetrahydrofuran 4: H2O2, trifluoroacetophenone, Py / CH2Cl2 5: Mg, CuCl 6: CuI, Pd(OAc)2, PPh3 / various solvent(s) / Heating 7: 1.) H2, 2.) H2SO4 / 1.) Pd/C / 1.) DMF, 2.) acetone View Scheme |
4,9-Androstadiene-3,17-dione
C29H34O6
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 3: KOtBu / tetrahydrofuran 4: H2O2, trifluoroacetophenone, Py / CH2Cl2 5: Mg, CuCl View Scheme |
4,9-Androstadiene-3,17-dione
C30H36O6
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 3: KOtBu / tetrahydrofuran 4: H2O2, trifluoroacetophenone, Py / CH2Cl2 5: Mg, CuCl View Scheme |
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 3: KOtBu / tetrahydrofuran 4: H2O2, trifluoroacetophenone, Py / CH2Cl2 5: Mg, CuCl 6: CuI, Pd(OAc)2, PPh3 / various solvent(s) / Heating 7: H2SO4 / acetone View Scheme |
4,9-Androstadiene-3,17-dione
C36H43NO4
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 3: KOtBu / tetrahydrofuran 4: H2O2, trifluoroacetophenone, Py / CH2Cl2 5: Mg, CuCl 6: CuI, Pd(OAc)2, PPh3 / various solvent(s) / Heating View Scheme |
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 3: KOtBu / tetrahydrofuran 4: H2O2, trifluoroacetophenone, Py / CH2Cl2 5: Mg, CuCl 6: CuI, Pd(OAc)2, PPh3 / various solvent(s) / Heating 7: H2SO4 / acetone View Scheme |
4,9-Androstadiene-3,17-dione
C38H48N2O4
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 3: KOtBu / tetrahydrofuran 4: H2O2, trifluoroacetophenone, Py / CH2Cl2 5: Mg, CuCl 6: CuI, Pd(OAc)2, PPh3 / various solvent(s) / Heating View Scheme |
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 3: KOtBu / tetrahydrofuran 4: H2O2, trifluoroacetophenone, Py / CH2Cl2 5: Mg, CuCl 6: CuI, Pd(OAc)2, PPh3 / various solvent(s) / Heating 7: H2SO4 / acetone View Scheme |
4,9-Androstadiene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 3: KOtBu / tetrahydrofuran 4: H2O2, trifluoroacetophenone, Py / CH2Cl2 5: Mg, CuCl 6: CuI, Pd(OAc)2, PPh3 / various solvent(s) / Heating 7: H2SO4 / acetone View Scheme |
4,9-Androstadiene-3,17-dione
C37H45NO6S
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 3: KOtBu / tetrahydrofuran 4: H2O2, trifluoroacetophenone, Py / CH2Cl2 5: Mg, CuCl 6: CuI, Pd(OAc)2, PPh3 / various solvent(s) / Heating View Scheme |
4,9-Androstadiene-3,17-dione
C36H40O8S
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 3: KOtBu / tetrahydrofuran 4: H2O2, trifluoroacetophenone, Py / CH2Cl2 5: Mg, CuCl 6: CuI, Pd(OAc)2, PPh3 / various solvent(s) / Heating View Scheme |
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