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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 610326Generated: October 30, 2026

Ethyl 4-[(5-butyl-7,8-dihydro-8,8-dimethylnaphth-3-yl)ethynyl]benzoate → 4-[(5-Butyl-8,8-dimethyl-7,8-dihydronaphth-3-yl)ethynyl]benzoic acid

https://huagongshe.com/reaction/610326

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 4-[(5-butyl-7,8-dihydro-8,8-dimethylnaphth-3-yl)ethynyl]benzoateHCID 18314556—
Reactant4-[(5-Butyl-7,8-dihydro-8,8-dimethylnaphth-3-yl)ethynyl]benzoateHCID 18314594—
Reactant4-[(7,8-Dihydro-8,8-dimethyl-5-(1,1-dimethylethyl)naphth-3-yl)ethynyl]benzoic acidHCID 18314596—
Product4-[(5-Butyl-8,8-dimethyl-7,8-dihydronaphth-3-yl)ethynyl]benzoic acidHCID 18314577—

Reaction Steps

Employing the same general procedure as for the preparation of 4-[(7,8-dihydro-8,8-dimethyl-5-(1,1-dimethylethyl)naphth-3-yl)ethynyl]benzoic acid (Compound 80), 22.6 mg (0.06 mmol) of ethyl 4-[(5-butyl-7,8-dihydro-8,8-dimethylnaphth-3-yl)-ethynyl]benzoate (Compound 74) was converted into the title compound using 6.1 mg (0.146 mmol) of LiOH in H2O.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05998471
Source datasetuspto-grants-1999_12
ORD IDord-822cdf77a5b2465e9f3574296ac6d5d4
Source noteuspto-grants-1999_12