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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1390786Generated: October 31, 2026

Benzene → HCID 86736327, compound

https://huagongshe.com/reaction/1390786

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzeneHCID 241—
ReactantDimethyl SulfoxideHCID 679—
ReactantTrifluoroacetic acidHCID 6422—
Reactant19-Hydroxy-1alpha,4alpha-dimethyl-5-androstene-3,17-dioneHCID 70605333—
SolventPyridineHCID 1049—
SolventEthyl AcetateHCID 8857—
ProductHCID 86736327HCID 86736327—

Reaction Steps

19-Hydroxy-1α,4α-dimethyl-5-androstene-3,17-dione is added to a mixture containing dimethylsulfoxide, benzene, pyridine, trifluoroacetic acid and N,N-dicyclohexylcarbodiimide and allowed to react for about 12 hours at room temperature. Ethyl acetate is added and the reaction mixture is filtered, extracted with a cold solution of sodium bicarbonate, washed with water, and dried over magnesium sulfate. After evaporation of the volatile solvents at room temperature under reduced pressure, the residue which remains is crystallized from an ether-pentane mixture to yield 1α,4α-dimethyl-5-androstene-3,17,19-trione.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04139617
Source datasetuspto-grants-1979_02
ORD IDord-658f351b8e874762adbb8c5f50a4ab7c
Source noteuspto-grants-1979_02