Process for the hydroformylation of an ethylenically...

C - Chemistry – Metallurgy – 07 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C07F 9/6568 (2006.01) B01J 27/08 (2006.01) B01J 31/02 (2006.01) B01J 31/24 (2006.01) C07C 45/50 (2006.01) C07C 67/347 (2006.01) C07F 15/00 (2006.01) B01J 31/28 (2006.01)

Patent

CA 2500095

Process for the hydroformylation of an optionally substituted ethylenically unsaturated compound by reaction thereof with carbon monoxide and hydrogen in the presence of a specific catalyst system. The specific catalyst system comprises: a) a source of group VIII metal cations; b) a diphosphine ligand having the general formula X1-R-X2, wherein X1 and X2 each independently represent an optionally substituted cyclic group with at least 5 ring atoms, of which one is a phosphorus atom, and R represents a bivalent optionally substituted bridging group, connected to each phosphorus atom by a sp2 hybridized carbon atom; c) an acid having a pKa < 3, measured in an aqueous solution at 18 ~C or a salt derived thereof; and d) a source of halide anions. Furthermore some specific bidentate diphosphines used in this process are described.

L'invention concerne l'hydroformylation d'un composé éthyléniquement insaturé, éventuellement substitué, consistant à le faire réagir avec du monoxyde de carbone et de l'hydrogène, en présence d'un système catalyseur spécifique. Le système catalyseur spécifique comprend : (a) une source de cations de métaux du groupe VIII ; (b) un ligand diphosphine ayant la formule générale (I) X?1¿ R X?2¿ (I), dans laquelle X?1¿ et X?2¿ représentent chacun, indépendamment, un groupe cyclique éventuellement substitué ayant au moins 5 atomes de carbone sur le noyau, dont un est un atome de phosphore, et R représente un groupe de pontage éventuellement substitué, relié à un atome de phosphore par un atome de carbone hybridisé sp?2 ¿; (c) un acide ayant un pka < 3, mesuré en solution aqueuse à 18 ·C, ou un sel dérivé de cet acide ; et (d) une source d'ions halogénure. L'invention concerne en outre des biphosphines bidentées spécifiques utilisées dans ce procédé.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Process for the hydroformylation of an ethylenically... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the hydroformylation of an ethylenically..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the hydroformylation of an ethylenically... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1919130

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.