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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 865636Generated: October 29, 2026

Citric Acid → HCID 67680488, compound

https://huagongshe.com/reaction/865636

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantChloromethyl ethyl etherHCID 18523—
ReactantDiisopropylethylamineHCID 81531—
ReactantHCID 11163795HCID 11163795—
SolventDichloromethaneHCID 6344—
ProductHCID 67680488HCID 67680488—

Reaction Steps

A solution of 9.20 g of 3β-acetoxy-14β-hydroxy-5β-androst-15-en-17-one (G. Groszek et al., Bull. Pol. Acad. Sci., Chem., 34, 1986, 313), 11 ml of ethyl chloromethyl ether, 54 ml of diisopropylethylamine in 750 ml of dichloromethane was heated at reflux for 24 hrs. The solution was then cooled and poured into 500 ml of aq. 8% citric acid solution. The lower layer was separated, washed with water, dried over anhydrous sodium sulfate and evaporated to dryness. The crude product was purified by chromatography using cyclohexane/chloroform/acetone 80/10/10 as eluant to give 6.10 g of 3β-acetoxy-14β-ethoxymethoxy-5β-androst-15-en-17-one, as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05567694
Source datasetuspto-grants-1996_10
ORD IDord-849d7c13995841419ab33ca5ab5db972
Source noteuspto-grants-1996_10