4-[(5,6,7,8-Tetrahydro-8,8-dimethyl-5-oxonaphth-3-yl)ethynyl]benzoic acid → 4-[(5-Acetoxy-7,8-dihydro-8,8-dimethylnaphth-3-yl)ethynyl]benzoic acid

Participants

Reaction Steps

Employing the same general procedure as for the preparation of ethyl 4-[(5-acetoxy-7,8-dihydro-8,8-dimethylnaphth-2-yl)ethynyl]benzoate (Compound 105), 100.0 mg (0.31 mmol) of 4-[(5,6,7,8-tetrahydro-8,8-dimethyl-5-oxonaphth-3-yl)ethynyl]benzoic acid (Compound 8) was converted into the title compound (white solid) using 0.08 ml (0.94 mmol) of acetic anhydride and 30 mg (0.16 mmol) of p-toluenesulfonic acid.

Provenance & Evidence