17β-tert-Butoxy-1,3-dimethoxy-7α-(phenylsulfonyl)-1,3,5(10),9(11)-oestratetraen

Base Information

• Chemical Name: 17β-tert-Butoxy-1,3-dimethoxy-7α-(phenylsulfonyl)-1,3,5(10),9(11)-oestratetraen
• CAS No.: 75019-21-5
• Molecular Formula: C₃₀H₃₈O₅S
• Molecular Weight: 510.695
• Mol file: 75019-21-5.mol

Synonyms:17β-tert-Butoxy-1,3-dimethoxy-7α-(phenylsulfonyl)-1,3,5(10),9(11)-oestratetraen

Chemical Property of 17β-tert-Butoxy-1,3-dimethoxy-7α-(phenylsulfonyl)-1,3,5(10),9(11)-oestratetraen

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 17β-tert-Butoxy-1,3-dimethoxy-7α-(phenylsulfonyl)-1,3,5(10),9(11)-oestratetraen

There total 6 articles about 17β-tert-Butoxy-1,3-dimethoxy-7α-(phenylsulfonyl)-1,3,5(10),9(11)-oestratetraen which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 33.0%

(1S,3aS,4S,7aS)-1-tert-Butoxy-4-<(1R)-2-(3,5-dimethoxyphenyl)-1-(phenylsulfonyl)ethyl>-5,5-(ethylendioxy)-2,3,3a,4,5,6,7,7a-octahydro-7a-methyl-1H-inden (82079-97-8) → 17β-tert-Butoxy-1,3-dimethoxy-7α-(phenylsulfonyl)-1,3,5(10),9(11)-oestratetraen (75019-21-5)

Guidance literature:

With sulfuric acid; In acetone; at -20 ℃; for 0.166667h;

DOI:10.1002/jlac.198219820306

Reference yield:

(1S,7aS)-1-tert-butoxy-7a-methyl-1,2,3,6,7,7a-hexahydro-5H-inden-5-one (41878-38-0) → 17β-tert-Butoxy-1,3-dimethoxy-7α-(phenylsulfonyl)-1,3,5(10),9(11)-oestratetraen (75019-21-5)

Guidance literature:

Multi-step reaction with 5 steps

1: 77 percent / tetramethylethylenediamine / acetic acid / 60 h / 35 °C

2: 70 percent / H₂, 1N HCl / 10percent Pd/C / ethanol

3: 75 percent / conc. H₂SO₄, HC(OC₂H₅)3 / dioxane / 24 h / Ambient temperature

4: 33 percent / LDA / tetrahydrofuran / 12 h / -20 °C

5: 33 percent / conc. H₂SO₄ / acetone / 0.17 h / -20 °C

With hydrogenchloride; N,N,N,N,-tetramethylethylenediamine; sulfuric acid; hydrogen; orthoformic acid triethyl ester; lithium diisopropyl amide; palladium on activated charcoal; In tetrahydrofuran; 1,4-dioxane; ethanol; acetic acid; acetone;

DOI:10.1002/jlac.198219820306

Reference yield:

(1S,7aS)-1-tert-Butoxy-1,2,3,6,7,7a-hexahydro-7a-methyl-4-<(phenylsulfonyl)methyl>-5H-inden-5-on (51168-78-6) → 17β-tert-Butoxy-1,3-dimethoxy-7α-(phenylsulfonyl)-1,3,5(10),9(11)-oestratetraen (75019-21-5)

Guidance literature:

Multi-step reaction with 4 steps

1: 70 percent / H₂, 1N HCl / 10percent Pd/C / ethanol

2: 75 percent / conc. H₂SO₄, HC(OC₂H₅)3 / dioxane / 24 h / Ambient temperature

3: 33 percent / LDA / tetrahydrofuran / 12 h / -20 °C

4: 33 percent / conc. H₂SO₄ / acetone / 0.17 h / -20 °C

With hydrogenchloride; sulfuric acid; hydrogen; orthoformic acid triethyl ester; lithium diisopropyl amide; palladium on activated charcoal; In tetrahydrofuran; 1,4-dioxane; ethanol; acetone;

DOI:10.1002/jlac.198219820306

upstream raw materials:

(1S,3aS,4S,7aS)-1-tert-Butoxy-4-<(1R)-2-(3,5-dimethoxyphenyl)-1-(phenylsulfonyl)ethyl>-5,5-(ethylendioxy)-2,3,3a,4,5,6,7,7a-octahydro-7a-methyl-1H-inden

(1S,7aS)-1-tert-butoxy-7a-methyl-1,2,3,6,7,7a-hexahydro-5H-inden-5-one

(1S,7aS)-1-tert-Butoxy-1,2,3,6,7,7a-hexahydro-7a-methyl-4-<(phenylsulfonyl)methyl>-5H-inden-5-on

(1S,3aS,4S,7aS)-1-tert-Butoxy-1,2,3,3a,4,6,7,7a-octahydro-7a-methyl-4-<(phenylsulfonyl)methyl>-5H-inden-5-on

Downstream raw materials:

17β-tert-Butoxy-1,3-dimethoxy-7α-methyl-7β-(phenylsulfonyl)-1,3,5(10)-oestratrien

17β-tert-Butoxy-1,3-dimethoxy-7β-methyl-7α-(phenylsulfonyl)-1,3,5(10)-oestratrien

17β-tert-Butoxy-1,3-dimethoxy-7α-(phenylsulfonyl)-1,3,5(10)-oestratrien

17β-tert-Butoxy-1,3-dimethoxy-7β-(phenylsulfonyl)-1,3,5(10)-oestratrien