PROCESS FOR THE PREPARATION OF N-HETEROCYCLES

摘要

N-Heterocycles of the formulae (I) and (II) …… in which R<1> and R<4> to R<9> can denote hydrogen or an alkyl, aryl, aralkyl, alkaryl or cycloalkyl group and R<2> and R<3> can denote an alkyl, alkaryl, substituted alkyl or cycloalkyl group, are prepared by reacting olefins of the formulae (III) and (IV) …… in which R<2> to R<9> can adopt the above meanings, with NH3 or a primary amine of the formula H2NR<1>, in which R<1> has the above meaning, in the presence of zeolites as catalysts.