| 摘要 |
Amines of the general formula I <IMAGE> (I) where R1 and R2 are each C1-C20-alkyl, C3-C20-cycloalkyl, C4-C20-alkylcycloalkyl, C4-C20-cycloalkylalkyl, aryl, C7-C20-alkylaryl, C7-C20-aralkyl or a heterocyclic radical and n is an integer of from 3 to 7, are prepared by a process in which a ketone of the general formula II <IMAGE> (II) where R1 and R2 have the abovementioned meanings, is reacted with a cyclic amine of the general formula III <IMAGE> (III) where n has the abovementioned meanings, in the presence of a zeolite and/or SiO2 having a zeolite structure and/or a phosphate and/or a phosphate having a zeolite structure as catalysts at from 50 DEG to 500 DEG C. and from 0.01 to 50 bar.
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