Phosgene → [2-(3-Methyl-1,2,4-oxadiazol-5-yl)phenyl]carbamoyl Chloride

Participants

Reaction Steps

A solution of 2-(3-methyl-1,2,4-oxadiazol-5-yl)benzenamine (1.0 g) in dry dichloromethane (20 ml) was added dropwise to a 0° solution of phosgene (14.1 ml, 20% in toluene) in dry dichloromethane (50 ml) under a nitrogen atmosphere. After addition the reaction mixture was allowed to slowly attain room temperature and stirred for 4 h. Nitrogen, was bubbled through the resulting mixture for 16 h. Dichloromethane was added to the resultant precipitate and the solution was evaporated to give the title compound (1.322 g), max (Nujol) 2800-2500, 1782 (NCO-Cl), 1631 (C=N), 1501 (NH), 769 (aromatic) cm-1.

Provenance & Evidence