FIELD: organic chemistry, chemical technology.
SUBSTANCE: invention relates to a method for semi-hydrogenation of dinitrile of the general formula: NC-R-CN wherein R means linear or branched alkylene group comprising from 1 to 12 carbon atoms to the corresponding aminonitrile in the liquid medium. Method is carried out in the presence of a catalyst, such as nickel or Raney nickel comprising an activating element taken among rhodium or iridium wherein the weight ratio (Rh or Ir)/Ni is from 0.05% to 10%. Method provides enhancing yield of aminonitrile.
EFFECT: improved and enhanced method.
21 cl, 3 ex
| Title | Year | Author | Number | 
|---|---|---|---|
| METHOD FOR SEMI-HYDROGENATION OF DINITRILES TO AMINONITRILES | 2002 | 
									
  | 
                RU2260587C1 | 
| METHOD OF SEMIHYDRATION OF DINITRILES TO AMINONITRILES | 1995 | 
									
  | 
                RU2167854C2 | 
| METHOD FOR SEMI-HYDROGENATION OF DINITRILES | 1999 | 
									
  | 
                RU2220133C2 | 
| METHOD FOR PURIFICATION OF ALIPHATIC AMINONITRILES | 1999 | 
									
  | 
                RU2222525C2 | 
| DINITRILES HYDROGENATION PROCESS | 1998 | 
									
  | 
                RU2181716C2 | 
| METHOD OF PREPARING LACTAM | 1996 | 
									
  | 
                RU2167860C2 | 
| METHOD OF REGENERATION OF HYDROGENATION CATALYST, METHOD OF HYDROGENATION OF COMPOUND CONTAINING NITRILE GROUPS | 1998 | 
									
  | 
                RU2190469C2 | 
| METHOD OF HYDROGENATION OF NITRILE GROUPS INTO AMINO GROUPS | 2001 | 
									
  | 
                RU2242460C2 | 
| CONTINUOUS PROCESS FOR HYDROGENATION OF NITRITES AND NITRO COMPOUNDS INTO AMINES | 2003 | 
									
  | 
                RU2272023C1 | 
| METHOD FOR PREPARING AMINONITRILE AND DIAMINE | 1999 | 
									
  | 
                RU2210564C2 | 
Authors
Dates
2005-09-20—Published
2002-06-13—Filed