Process for the preparation of ruthenium hydrogenation...

C - Chemistry – Metallurgy – 07 – F

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C07F 15/00 (2006.01) B01J 31/12 (2006.01) B01J 31/24 (2006.01) C07C 209/32 (2006.01) C07C 209/36 (2006.01) C07C 209/48 (2006.01) C07C 211/03 (2006.01) C07C 211/09 (2006.01) C07C 211/43 (2006.01) C07C 213/02 (2006.01) C07C 253/30 (2006.01) C07D 213/38 (2006.01) C07D 307/52 (2006.01) C07C 211/12 (2006.01) C07C 211/46 (2006.01) C07C 217/90 (2006.01) C07C 255/24 (2006.01)

Patent

CA 2208039

This invention relates to a process for the preparation of ruthenium complexes of the formula RuH2L2(PR3)2, wherein each L is independently H2 or an additional equivalent of PR3, and each R is independently H, a hydrocarbyl group, or an assembly of at least two hydrocarbyl groups connected by ether or amine linkages, comprising contacting a source of ruthenium and PR3 with gaseous hydrogen in the presence of a strong base, a phase transfer catalyst, water and an organic solvent; and the use of certain classes of ruthenium complexes as catalysts in hydrogenation, and reductive hydrolysis processes.

L'invention porte sur un procédé de préparation de catalyseurs à base de complexes de ruthénium, de formule RuH¿2?L¿2?(PR¿3?)¿2?, dans laquelle chacun des L est indépendamment H¿2? ou un équivalent additionnel de PR¿3?, et chacun des R est indépendamment un groupe hydrocarbyle, ou bien le groupement de deux groupes hydrocarbyle reliés par des liaisons éther ou amine. Ledit procédé consiste à mettre en contact une source de ruthénium et le PR¿3? avec de l'hydrogène sous forme gazeuse en présence d'une base forte, d'un catalyseur à transfert de phase, d'eau et d'un solvant organique. L'invention porte également sur l'utilisation de certaines catégories de complexes de ruthénium comme catalyseurs de processus d'hydrogénation et d'hydrolyse réductrice.

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