Acetic Anhydride → N-(5-Acetyl-2-hydroxyphenyl)ethanimidic acid

Participants

Reaction Steps

A solution of 1-(4-hydroxy-3-nitro-phenyl)-ethanone (10 g) in methanol, DMF (50 ml) and acetic anhydride (10 ml) was hydrogenated using 10% Pd—C (0.45 g) for 2 h at 30 psi. The catalyst was filtered off. The filtrate was concentrated (5 ml) and treated with EtOAc (100 ml) to obtain the title compound, which was filtered, washed with EtOAc (10 ml) and dried. Yield, 9.1 g (85%); mp, >215° C.; MS (EI): 193 (M+), 151, 136, 108.

Provenance & Evidence