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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 479318Generated: October 31, 2026

Hydrochloric Acid → HCID 20599275, compound

https://huagongshe.com/reaction/479318

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 69886665HCID 69886665—
SolventEthanolHCID 702—
ProductHCID 20599275HCID 2059927566.6%

Reaction Steps

A mixture of 4,4-dimethyl-16β-(tert-butyldimethylsilyloxy)cholest-5-en-3-one (40 mg, 0.07 mmol), concentrated HCl (0.2 mL) and ethanol (5 mL) were heated to reflux for 20 hours. Removal of solvent under reduced pressure and recrystallization twice from methanol gave 4,4-dimethylcholest-5-en-16-ol-3-one (20 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06645953B2
Source datasetuspto-grants-2003_11
ORD IDord-a6bebadc88b44d29a4c60525eaabb932
Source noteuspto-grants-2003_11