Verfahren zur Herstellung von neuen Zimtsäureamiden

摘要

New N-(4-chloro)cinnamoyl-(4'-hydroxy)-piperazine is prepared by a) reacting a cinnamic acid deriv. of formula p-Cl-C6H4-CH=CH-COX (in which X is OH, NH, mono- or dialkylamino, or a reactive group) with 4-hydroxypiperidine, or a reactive deriv. of 4-hydroxypiperidine; b) or by reacting a cpd. of formula: (in which R is lower alkyl or (R1)3-P=CH-, where R1 is aryl or alkyl) with 4-chlorobenzaldehyde.