Ethyl 4-[(7,8-dihydro-8,8-dimethyl-5-(phenylethyn-1-yl)naphth-2-yl)ethynyl]benzoate → 4-[(7,8-Dihydro-8,8-dimethyl-5-(phenylethyn-1-yl)-naphth-2-yl)ethynyl]benzoic acid

Participants

Reaction Steps

Employing the same general procedure as for the preparation of 4-[(7,8-dihydro-8,8-dimethyl-5-phenylnaphth-2-yl)ethynyl]benzoic acid (Compound 97), 22 mg (0.05 mmol) of ethyl 4-[(7,8-dihydro-8,8-dimethyl-5-(phenylethyn-1-yl)naphth-2-yl)ethynyl]benzoate (Compound 90) was converted to the title compound (pale yellow solid) using 11 mg (0.5 ml, 0.26 mmol) of LiOH (0.5 M aqueous solution).

Provenance & Evidence