N-Chloro-succinimide prodn - by reacting aq acid soln of succinimide with sodium hypochlorite

摘要

N-chloro-succinimide prodn. by reacting aq. soln. of succinimide and org. acid of pKa 2 to 8 with soln. of NaOC1 having chlorometric degree 20-80, at -10 to 20 degrees C. Yield is 92-95% compared with 85% with prior process using KOCl. Method can be used for continuous prodn. Vol. ratio acid to water in succinimide soln. is 0.1-2:1, molar ratio acid to succinimide 1. Supply of reactants are regulated so that molar ratio siccinimide/Cl+ is 0.4-4-1:1, molar ratio acid/Cl+ 1.