20-triphenylmethoxy-21-nor-5-pregnen-3β-yl 2-(trimethylsilyl)ethyl butanedioate

Base Information

Chemical Name:20-triphenylmethoxy-21-nor-5-pregnen-3β-yl 2-(trimethylsilyl)ethyl butanedioate
CAS No.:114682-84-7
Molecular Formula:C₄₈H₆₂O₅Si
Molecular Weight:747.103
Hs Code.:

Synonyms:20-triphenylmethoxy-21-nor-5-pregnen-3β-yl 2-(trimethylsilyl)ethyl butanedioate

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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-triphenylmethoxy-21-nor-5-pregnen-3β-yl 2-(trimethylsilyl)ethyl butanedioate

Chemical Property:

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Technology Process of 20-triphenylmethoxy-21-nor-5-pregnen-3β-yl 2-(trimethylsilyl)ethyl butanedioate

There total 5 articles about 20-triphenylmethoxy-21-nor-5-pregnen-3β-yl 2-(trimethylsilyl)ethyl butanedioate 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: 92.0%

: 93790-78-4
4-oxo-4-(2-(trimethylsilyl)ethoxy)butanoic acid

: 114682-79-0
20-triphenylmethoxy-21-nor-5-pregnen-3β-ol

: 114682-84-7
20-triphenylmethoxy-21-nor-5-pregnen-3β-yl 2-(trimethylsilyl)ethyl butanedioate

Guidance literature:: With dmap; dicyclohexyl-carbodiimide; In benzene; for 5h; Ambient temperature;

Reference yield:

: 76-83-5
trityl chloride

: 114682-84-7
20-triphenylmethoxy-21-nor-5-pregnen-3β-yl 2-(trimethylsilyl)ethyl butanedioate

Guidance literature:: Multi-step reaction with 2 steps

1: 83 percent / Et₃N/4-dimethylaminopyridine / CH₂Cl₂; 1,2-dimethoxy-ethane / 20 h / Ambient temperature

2: 92 percent / N,N'-dicyclohexylcarbodiimide/4-dimethylaminopyridine / benzene / 5 h / Ambient temperature

With dmap; triethylamine; dicyclohexyl-carbodiimide; In 1,2-dimethoxyethane; dichloromethane; benzene;

Reference yield:

: 86272-93-7
3β-hydroxyandrost-5-ene-17-methanol acetate

: 114682-84-7
20-triphenylmethoxy-21-nor-5-pregnen-3β-yl 2-(trimethylsilyl)ethyl butanedioate

Guidance literature:: Multi-step reaction with 3 steps

1: 73 percent / 4-dimethylaminopyridine / CH₂Cl₂ / 48 h / Ambient temperature

2: 93 percent / NaOH / H₂O; methanol; dioxane / Heating

3: 92 percent / N,N'-dicyclohexylcarbodiimide/4-dimethylaminopyridine / benzene / 5 h / Ambient temperature

With dmap; sodium hydroxide; dicyclohexyl-carbodiimide; In 1,4-dioxane; methanol; dichloromethane; water; benzene;