Isopropanol → 2-Isopropoxy-5-methylsulfonylbenzoic acid

Participants

Reaction Conditions

Reaction Steps

A mixture of 2.13 mmol 2-chloro-5-methanesulfonyl-benzoic acid, 0.64 mmol Cu(I) Br in 5 ml triethylamine and 25 ml isopropanol was heated to 120° C. for 16 h in a sealed tube. The volatiles were removed in vacuo and the residue was taken up in 70 ml 1 N HCl. Extraction with ethyl acetate, drying of the combined organic fractions and evaporation yielded a residue which was purified by reversed phase preparative HPLC eluting with an acetonitrile/water gradient. Evaporation of the product fractions yielded the title compound. MS (m/e): 257.0 ([M−H]−, 100%)

Provenance & Evidence