(17α,20E)-21-[2,4-dimethylphenyl]-19-norpregna-1,3,5(10),20-tetraene-3,17β-diol

Base Information

Chemical Name:(17α,20E)-21-[2,4-dimethylphenyl]-19-norpregna-1,3,5(10),20-tetraene-3,17β-diol
CAS No.:1363905-65-0
Molecular Formula:C₂₈H₃₄O₂
Molecular Weight:402.577
Hs Code.:

Synonyms:(17α,20E)-21-[2,4-dimethylphenyl]-19-norpregna-1,3,5(10),20-tetraene-3,17β-diol

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Chemical Property of (17α,20E)-21-[2,4-dimethylphenyl]-19-norpregna-1,3,5(10),20-tetraene-3,17β-diol

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Technology Process of (17α,20E)-21-[2,4-dimethylphenyl]-19-norpregna-1,3,5(10),20-tetraene-3,17β-diol

There total 2 articles about (17α,20E)-21-[2,4-dimethylphenyl]-19-norpregna-1,3,5(10),20-tetraene-3,17β-diol 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: 94.0%

: 1380442-12-5
C₃₀H₃₆O₃

: 1363905-65-0
(17α,20E)-21-[2,4-dimethylphenyl]-19-norpregna-1,3,5(10),20-tetraene-3,17β-diol

Guidance literature:: With methanol; sodium hydroxide; at 20 ℃;
DOI:10.1016/j.steroids.2012.01.003

Reference yield:

: 4214-28-2
1-iodo-2,4-dimethylbenzene

: 5779-47-5
3-acetoxy-17α,19-norpregna-1,3,5(10)-triene-20-yn-17β-ol

: 1363905-65-0
(17α,20E)-21-[2,4-dimethylphenyl]-19-norpregna-1,3,5(10),20-tetraene-3,17β-diol

Guidance literature:: Multi-step reaction with 2 steps

1.1: triethyl borane; tri-n-butyl-tin hydride / tetrahydrofuran / 60 °C

1.2: 110 °C / Inert atmosphere

2.1: methanol; sodium hydroxide / 20 °C

With methanol; triethyl borane; tri-n-butyl-tin hydride; sodium hydroxide; In tetrahydrofuran; 1.2: Stille coupling;
DOI:10.1016/j.steroids.2012.01.003