Ligands for pnicogen chelate complexes with a metal of...

C - Chemistry – Metallurgy – 07 – F

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C07F 9/00 (2006.01) B01J 31/18 (2006.01) C07C 29/141 (2006.01) C07C 29/16 (2006.01) C07C 45/50 (2006.01) C07C 253/10 (2006.01) C07F 9/572 (2006.01) C07F 9/655 (2006.01) C07F 9/6558 (2006.01) C07F 9/6584 (2006.01) C07F 9/6596 (2006.01) C07F 9/74 (2006.01) C07F 9/92 (2006.01) C07F 15/00 (2006.01) C07F 15/06 (2006.01) B01J 31/28 (2006.01)

Patent

CA 2442039

Disclosed are pnicogen ligand compounds of the formula I which have two pnicogen-containing groups joined to one another via a xanthene-like or triptycene-like molecular skeleton and in which at least one pyrrole group is covalently bound via its nitrogen atom to each pnicogen atom form complexes with metals of transition group VIII. These compounds are useful as catalysts for the hydroformylation of olefins. (see formula I)

L'invention concerne des composés chélate de pnictogène, qui comprennent deux groupes contenant des atomes de pnictogène et liés l'un à l'autre par l'intermédiaire d'un édifice moléculaire de type xanthène ou triptycène. Les composés selon l'invention sont caractérisés en ce qu'au moins un groupe pyrrole est lié de manière covalente à chaque atome de pnictogène par l'intermédiaire de son atome d'azote. L'invention concerne également des catalyseurs comprenant un complexe à base d'un métal du groupe VIII de la classification périodique des éléments avec au moins un composé chélate de pnictogène en tant que ligand. L'invention concerne en outre un procédé pour l'hydroformylation d'oléfines.

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