PREPARATION OF CYCLIC LACTAMS BY REACTION UNDER CATALYTIC CONDITIONS OF WATER AND AMINOCARBOXYLIC ACID COMPOUNDS

摘要

Cyclic lactams are prepared by reacting an aminocarboxylic acid compound of the formula I H2N-(CH2)m-COR1 I where R1 is -OH, -O-C1-C12-alkyl or -NR2R3 and R2 and R3, independently of one another, are each hydrogen, C1-C12-alkyl or C5-C8-cycloalkyl and m is an integer from 3 to 12, with water by a process in which the reaction is carried out in the liquid phase using a heterogeneous catalyst.