BIS-QUATERNARY SALT AS PHASE TRANSFER CATALYST FOR MANUFACTURE OF AROMATIC ETHER IMIDE

摘要

Bis-quaternary ammonium and phosphonium salts such as bis(tri- n-butyl)- 1,6-hexylenediammonium dibromide are excellent phase transfer agents for the preparation of aromatic ether imides, as by the reaction of the disodium salt of bisphenol A with 4-nitro-N-methylphthalimide.