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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2215938Generated: October 30, 2026

Benzenesulfonyl hydrazide → HCID 86609401, compound

https://huagongshe.com/reaction/2215938

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzenesulfonyl hydrazideHCID 65723—
Reactant(+-)-8alpha-Estrone methyl etherHCID 7092634—
CatalystHydrochloric AcidHCID 313—
SolventEthanolHCID 702—
ProductHCID 86609401HCID 8660940192.3%

Reaction Steps

A suspension of 5.68 g (20 mmol) of 3-methoxy-8α-estra-1,3,5(10)-trien-17-one and 4.30 g (25 mmol) of benzenesulfonic acid hydrazide in 70 ml of ethanol is mixed with 3 drops of concentrated hydrochloric acid and then allowed to react at a bath temperature of 80–90° C. for three hours while being stirred vigorously. After the reaction solution is cooled, the precipitated product is suctioned off, rewashed with a little cold ethanol, and the hydrazone is dried in a vacuum. 8.10 g (92%) of product, which melts at 183–185° C., is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07109360B1
Source datasetuspto-grants-2006_09
ORD IDord-1500d474d48f4111bfe87706b5118721
Source noteuspto-grants-2006_09