C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 209/52 (2006.01) C07C 209/26 (2006.01) C07C 209/48 (2006.01) C07C 211/27 (2006.01) C07C 211/36 (2006.01) C07D 307/52 (2006.01)
Patent
CA 2209860
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 particularly suitable for the production of isophorone diamine from isophorone nitrile, wherein it has made possible a reduction in the content of secondary products and an increase in yield.
La présente invention concerne un procédé pour la production d'amines primaires et/ou secondaires à partir de composés oxo, par imination catalytique du composé oxo avec de l'ammoniac ou une amine primaire et par hydrogénation subséquente. Dans la présente invention, l'imination se déroule en présence d'un nouveau catalyseur d'imination, à savoir un organopolysiloxane portant des groupes sulfonate. Ce catalyseur d'imination se distingue par son activité élevée. Le procédé convient tout particulièrement à la production d'isophoronediamine à partir d'isophoronenitrile, où il permet une réduction de la teneur en produits secondaires et une augmentation de rendement.
Arntz Dietrich
Haas Thomas
Hofen Willi
Weber Karl-Ludwig
Wieland Stefan
Aktiengesellschaft Degussa
Degussa-Huls Aktiengesellschaft
Marks & Clerk
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