公开(公告)号：IT1033134B

公开(公告)日：1979-07-10

申请号：IT2059075

申请日：1975-02-25

Applicant: SNIA VISCOSA

Inventor： SICLARI F ,  ROSSI P P ,  GAETANO DE M

IPC: C07B61/00 ,  B01J23/00 ,  C07B31/00 ,  C07C67/00 ,  C07C227/00 ,  C07C227/06 ,  C07C227/08 ,  C07C227/10 ,  C07C229/08 ,  C07C

Abstract: The specification describes a process for preparing saturated omega-aminoacids from olefinically unsaturated omega-aldehydoacids. According to the invention, the starting aldehydoacid is transformed into the corresponding iminoacid, and this is subjected to the hydrogenation both of the imino function and of the ethylenic double bond or double bonds, in a single stage and in the presence of an hydrogenation catalyst. The catalyst is a transition metal of one of the first two sub-groups of the VIII group of the periodic system, viz. is chosen among Fe, Ru, Os, Co, Rh, and Ir, and is used in the metal state or as a compound.