C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 9/02 (2006.01) B01J 31/00 (2006.01) B01J 31/24 (2006.01) C07F 1/00 (2006.01) C07F 7/00 (2006.01) C07F 9/00 (2006.01) C07F 9/50 (2006.01) C07F 9/52 (2006.01) C07F 9/572 (2006.01) C07F 9/645 (2006.01) C07F 9/6527 (2006.01) C07F 9/653 (2006.01) C07F 9/6536 (2006.01) C07F 9/655 (2006.01) C07F 9/6553 (2006.01) C07F 9/6574 (2006.01) C07F 9/6596 (2006.01) C07F 13/00 (2006.01) C07F 15/00 (2006.01) C07F 15/04 (2006.01) C08F 8/40 (2006.01)
Patent
CA 2385421
Chiral ligands and transition metal complexes based on such chiral ligands useful in asymmetric catalysis are dis-closed. The chiral ligands include chiral C1-C6 TunaPhos ligands. The ruthenium TunaPhos complex reduces ketones to the corre-sponding alcohols with 95-99.6 % enantioselectivity. The transition metal complexes of the chiral ligands are useful in asymmetric reactions such as asymmetric hydrogenation, hydride transfer, hydrosilylation, hydroboration, hydrovinylation, hydroformylation, hydrocarboxylation, isomerization, allylic alkylation, cyclopropanation, Diels- Alder reaction, Heck reaction, isomerization, Aldol reaction, Michael addition and epoxidation reactions.
L'invention concerne des ligands chiraux et des complexes de métaux de transition à base desdits ligands chiraux utiles dans une réaction de catalyse asymétrique. Les ligands chiraux comprennent des ligands de TunaPhos C1C6. Le complexe de TunaPhos-ruthénium réduit des cétones en alcool correspondant avec une énantiosélectivité de 95-99 %. Les complexes de métaux de transition des ligands chiraux sont utiles dans des réactions asymétriques telles que hydrogénation asymétrique, transfert hybride, hydrosilylation, e hydroboration, hydrovinylation, hydroformylation, hydrocarboxylation, isomérisation, alkylation allycique, cyclopropanation, réaction de Diels-Alder, réaction de Heck, une réaction d'aldol, addition de Michael, et réactions d'époxydation.
Zhang Xumu
Sim & Mcburney
The Penn State Research Foundation
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