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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 53395Generated: October 28, 2026

HCID 19962312, compound → 4-[(7,8-Dihydro-8,8-dimethyl-5-phenylthionaphth-3-yl)ethynyl]benzoic acid

https://huagongshe.com/reaction/53395

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 19962312HCID 19962312—
ReactantHCID 19962313HCID 19962313—
ReactantEthyl 4-[(7,8-dihydro-8,8-dimethyl-5-phenylthionaphth-3-yl)ethynyl]benzoateHCID 19962320—
Product4-[(7,8-Dihydro-8,8-dimethyl-5-phenylthionaphth-3-yl)ethynyl]benzoic acidHCID 19962314—

Reaction Steps

Employing the same general procedure as for the preparation of 4-[(7,8-dihydro-8,8-dimethyl-5-ethylthionaphth-3-yl)ethynyl]benzoic acid (Compound 153), 100 mg (0.38 mmol) of ethyl 4-[(7,8-dihydro-8,8-dimethyl-5-phenylthionaphth-3-yl)ethynyl]benzoate (Compound 155) was converted into the title compound (white solid, recrystallized from acetonitrile) using 2 ml of KOH (2N aqueous solution).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05618931
Source datasetuspto-grants-1997_04
ORD IDord-4c7d3697045b4fb4b1b262c95d9f48a3
Source noteuspto-grants-1997_04