20-tert-butyldiphenylsilyloxy-3β-(2-tetrahydropyranyloxy)-21-nor-5-pregnene

Base Information

Chemical Name:20-tert-butyldiphenylsilyloxy-3β-(2-tetrahydropyranyloxy)-21-nor-5-pregnene
CAS No.:129270-40-2
Molecular Formula:C₄₁H₅₈O₃Si
Molecular Weight:626.995
Hs Code.:

Synonyms:20-tert-butyldiphenylsilyloxy-3β-(2-tetrahydropyranyloxy)-21-nor-5-pregnene

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of 20-tert-butyldiphenylsilyloxy-3β-(2-tetrahydropyranyloxy)-21-nor-5-pregnene

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Technology Process of 20-tert-butyldiphenylsilyloxy-3β-(2-tetrahydropyranyloxy)-21-nor-5-pregnene

There total 3 articles about 20-tert-butyldiphenylsilyloxy-3β-(2-tetrahydropyranyloxy)-21-nor-5-pregnene 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: 93.0%

: 61453-65-4
3β-(2-tetrahydropyranyloxy)-21-nor-5-pregnen-20-ol

: 58479-61-1
tert-butylchlorodiphenylsilane

: 129270-40-2
20-tert-butyldiphenylsilyloxy-3β-(2-tetrahydropyranyloxy)-21-nor-5-pregnene

Guidance literature:: With dmap; triethylamine; In dichloromethane; for 12h; Ambient temperature;

Reference yield:

: 110-87-2
3,4-dihydro-2H-pyran

: 129270-40-2
20-tert-butyldiphenylsilyloxy-3β-(2-tetrahydropyranyloxy)-21-nor-5-pregnene

Guidance literature:: Multi-step reaction with 2 steps

1: 1.) p-toluenesulfonic acid monohydrate, 2.) 3.5 M sodium bis(2-methoxyethoxy)aluminium hydride / 1.) benzene, room temperature, 5 h, 2.) reflux, 5 h

2: 93 percent / triethylamine, 4-dimethylaminopyridine / CH₂Cl₂ / 12 h / Ambient temperature

With dmap; toluene-4-sulfonic acid; triethylamine; sodium bis(2-methoxyethoxy)aluminium dihydride; In dichloromethane;

Reference yield:

: 15173-68-9,10325-79-8
etienic acid

: 129270-40-2
20-tert-butyldiphenylsilyloxy-3β-(2-tetrahydropyranyloxy)-21-nor-5-pregnene

Guidance literature:: Multi-step reaction with 2 steps

1: 1.) p-toluenesulfonic acid monohydrate, 2.) 3.5 M sodium bis(2-methoxyethoxy)aluminium hydride / 1.) benzene, room temperature, 5 h, 2.) reflux, 5 h

2: 93 percent / triethylamine, 4-dimethylaminopyridine / CH₂Cl₂ / 12 h / Ambient temperature

With dmap; toluene-4-sulfonic acid; triethylamine; sodium bis(2-methoxyethoxy)aluminium dihydride; In dichloromethane;