公开(公告)号：SU591134A3

公开(公告)日：1978-01-30

申请号：SU2049593

申请日：1974-06-14

Applicant: SNIA VISCOSA

Inventor： SIKLARI FRANCHESKO ,  ROSSI PETRO PAOLO

IPC: C08G69/00 ,  C07B61/00 ,  C07C51/00 ,  C07C51/34 ,  C07C51/367 ,  C07C59/147 ,  C07C59/74 ,  C07C67/00 ,  C07C227/00 ,  C07C227/06 ,  C07C227/08 ,  C07C227/16 ,  C07C229/08 ,  C07C229/30 ,  C07D323/02 ,  C08G63/06 ,  C08G69/08 ,  C08G69/14 ,  C07C59/28

公开(公告)号：SU969150A3

公开(公告)日：1982-10-23

申请号：SU2839762

申请日：1979-11-06

Applicant: SNIA VISCOSA

Inventor： SIKLARI FRANCHESKO ,  ROSSI PER PAOLO ,  KANAVEZI LUIDZHI

IPC: C07C55/02 ,  B01J31/00 ,  C07B61/00 ,  C07C51/00 ,  C07C51/235 ,  C07C67/00

Abstract: A process for preparing alpha , omega -dicarboxylic acids of the formula HOOC-(CH2)n-COOH in which n=6 to 10 is disclosed. The process consists of the catalytic oxidation of a compound of formula X-(CH2)n-CHO wherein X is CHO or COOH and n is 6 to 10 by O2 pure or in mixture with inert gas, possibly under pressure, in at least one polar solvent, at a temperature comprised between 20 DEG and 90 DEG C. and in the presence of a catalyst. The catalyst is chosen from the group consisting of at least one cobalt (II) salt and one ferrous salt. The amount of the catalyst is

公开(公告)号：SU679130A3

公开(公告)日：1979-08-05

申请号：SU2325406

申请日：1976-02-24

Applicant: SNIA VISCOSA

Inventor： SIKLARI FRANCHESKO ,  ROSSI PETRO PAOLO ,  GAETANO MARIO DE

IPC: C07B61/00 ,  B01J23/00 ,  C07B31/00 ,  C07C67/00 ,  C07C227/00 ,  C07C227/06 ,  C07C227/08 ,  C07C227/10 ,  C07C229/08 ,  C07C101/447

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.