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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 440722Generated: October 30, 2026

Imidazole → HCID 131719415, compound

https://huagongshe.com/reaction/440722

Reaction equation

Participants

RoleNameHCIDCharge
ReactantImidazoleHCID 795—
ReactantWaterHCID 962—
Reactanttert-Butyldimethylsilyl chlorideHCID 28928—
ReactantHCID 54115112HCID 54115112—
SolventDimethylformamideHCID 6228—
ProductHCID 131719415HCID 13171941590.4%

Reaction Steps

To a solution of 1.0 g of 3β-(2-hydroxyethylthio)-androst-5-en-17-one in 20 ml of dimethylformamide, 1.7 g of imidazole and 2.0 g of t-butyldimethylsilyl chloride were added at 0° C. After 12 hrs the mixture was poured into water and extracted with ethyl acetate. The organic layer was dried over sodium sulfate and evaporated to dryness under reduced pressure to give 1.2 g of crude 3β-(2-tert-butyldimethylsilyloxyethythio)-androst-5-en-17-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05521167
Source datasetuspto-grants-1996_05
ORD IDord-476d17fa51444200b59d417e93898e0a
Source noteuspto-grants-1996_05