Process for the production of primary and/or secondary amines fr

Details Process for the production of primary and/or secondary amines fr Process for the production of primary and/or secondary amines fr

1997-07-07

1998-12-22

Burn, Brian M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C07C20948

Patent

active

058522174

ABSTRACT:
This invention relates to a process for the production of primary and/or secondary amines from oxo compounds by catalytic imination of the oxo compound with ammonia or a primary amine and subsequent hydrogenation. Imination proceeds according to the invention in the presence of a novel imination catalyst, namely an organopolysiloxane containing sulphonate groups. This imination catalyst is distinguished by elevated activity. The process is in particular suitable for the production of isophorone diamine from isophorone nitrile, wherein it has proved possible to reduce the content of secondary products and to increase yield.

REFERENCES:
patent: 5354831 (1994-10-01), Panster et al.
patent: 5679860 (1997-10-01), Haas et al.
patent: 5705699 (1998-01-01), Witzel

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