The use of microencapsulated transition metal reagents for...

Details The use of microencapsulated transition metal reagents for... The use of microencapsulated transition metal reagents for...

C - Chemistry, Metallurgy

07

C

C07C 29/48 (2006.01) B01J 13/02 (2006.01) B01J 13/16 (2006.01) B01J 31/06 (2006.01) B01J 31/16 (2006.01) B01J 35/00 (2006.01) B01J 35/08 (2006.01) C07B 37/04 (2006.01) C07C 1/32 (2006.01) C07C 17/26 (2006.01) C07C 17/266 (2006.01) C07C 17/269 (2006.01) C07C 41/30 (2006.01) C07C 45/64 (2006.01) C07C 45/68 (2006.01) C07C 67/343 (2006.01) C07C 201/12 (2006.01) C07C 205/06 (2006.01) B01J 31/28 (2006.01)

Patent

CA 2468505

There is provided processes for metal mediated reactions, particularly cross coupling and carbometallation reactions, wherein the metal is present as a catalyst system comprising a catalyst microencapsulated within a permeable polymer microcapsule shell and the reaction is carried out under super- critical or near super-critical conditions. Preferred metal-mediated cross coupling reactions include Heck, Suzuki, Sonogashira and Stille reactions. Preferred carbometallation reactions include hydroformylations.

La présente invention concerne des procédés se rapportant à des réactions induites par des métaux, notamment des réactions de couplage croisé et de carbométallation, dans lesquelles le métal est présent en tant que système catalyseur comprenant un catalyseur microencapsulé dans une enveloppe de microcapsule en polymère perméable et la réaction est effectuée dans des conditions supercritiques ou pratiquement supercritiques. Les réactions préférées de couplage croisé induites par des métaux comprennent les réactions de Heck, de Suzuki, de Sonogashira et de Stille. Les réactions de carbométallation préférées incluent les hydroformylations.

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