Patent ID: 7135576

Claim:
A process for preparing a N-(3-halogeno-2-hydroxypropyl)phthalimide represented by the following formula (5): wherein X is a halogen atom, which comprises reacting phthalimide and an epihalohydrin represented by the following formula (3): wherein X is the same as defined above, in an organic solvent in the presence of an alkali metal carbonate, an alkali metal hydrogencarbonate or a quaternary ammonium salt (4) represented by the following formula: R 1 R 2 R 3 R 4 N + X − (4) wherein R 1 , R 2 , R 3 and R 4 are the same or different, C 1-16 alkyl, C 2-16 alkenyl, aryl-alkyl(C 1-16 ) or aryl, and X is chloro ion, bromo ion, iodo ion, hydrogensulfate ion or hydroxy ion.