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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 610322Generated: October 29, 2026

Ethyl 4-[(7,8-dihydro-8,8-dimethyl-5-phenylnaphth-3-yl)ethynyl]benzoate → 4-[(7,8-Dihydro-8,8-dimethyl-5-phenylnaphth-2-yl)ethynyl]benzoic acid

https://huagongshe.com/reaction/610322

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 4-[(7,8-dihydro-8,8-dimethyl-5-phenylnaphth-3-yl)ethynyl]benzoateHCID 15430594—
Reactant4-[(7,8-Dihydro-8,8-dimethyl-5-(2-thiazolyl)naphth-3-yl)ethynyl]benzoic acidHCID 22323737—
Product4-[(7,8-Dihydro-8,8-dimethyl-5-phenylnaphth-2-yl)ethynyl]benzoic acidHCID 18314590—

Reaction Steps

Employing the same general procedure as for the preparation of 4-[(7,8-dihydro-8,8-dimethyl-5-(2-thiazolyl)naphth-3-yl)ethynyl]benzoic acid (Compound 78), 27.0 mg (0.07 mmol) of ethyl 4-[(7,8-dihydro-8,8-dimethyl-5-phenylnaphth-3-yl)ethynyl]benzoate (Compound 68) was converted into the title compound (colorless solid) using 5.9 mg (0.14 mmol) of LiOH in H2O.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05998471
Source datasetuspto-grants-1999_12
ORD IDord-bdaa42fb5fc14aefad5c246051d431c8
Source noteuspto-grants-1999_12