反应详情

Oxidation of 3-(2-methyl-pyridin-4-yl)-benzoic acid methyl ester (26.2 g, 0.11 mol; example K12) with H2O2 (30%, 31.5 ml, 0.31 mol) in acetic acid (117 ml) at 70° C. for 27 h and subsequent reaction of the N-oxide in acetic acid anhydride (22 ml) at 135° C. for 30 min yielded after aqueous work-up 3-(2-acetoxymethyl-pyridin-4-yl)-benzoic acid methyl ester (25.3 g, 82%) as a brown oil.