Buffer Catalysis in the Hydrolysis of Picryl Chloride

RITA H. DE ROSSI; ELBA I. BUJÁN

AMER CHEMICAL SOC

Lugar: Washington; Año: 1979 vol. 44 p. 4100 - 4100

he kinetics of the hydrolysis of picryl chloride were studied between pH 7.06 and 11.60 with different buffers at various concentrations. The reaction is strongly catalyzed by tertiary amines (N-ethylmorpholine, 2,4,6-trimethylpyridine, and Dabco) and also by carbonate and bicarbonate. A small increase in rate is also observed with phosphate trianion and borate. The catalysis seems to be of the nucleophilic type for N-ethylmorpholine, 2,4,6-trimethylpyridine, carbonate, and bicarbonate, but a mechanism involving general base-catalyzed addition of water is suggested for the other bases.