C - Chemistry – Metallurgy – 07 – B
Patent
C - Chemistry, Metallurgy
07
B
C07B 53/00 (2006.01) B01J 31/16 (2006.01) B01J 31/18 (2006.01) B01J 31/22 (2006.01) C07B 57/00 (2006.01) C07C 227/32 (2006.01) C07C 251/24 (2006.01) C07C 253/08 (2006.01) C07C 253/10 (2006.01) C07C 229/36 (2006.01) C07C 255/29 (2006.01) C07C 255/31 (2006.01) C07C 255/44 (2006.01)
Patent
CA 2329316
The present invention relates to a method and catalysts for the stereoselective addition of a nucleophile to a reactive .pi.-bond of a substrate. The chiral, non-racemic catalysts of the present invention constitute the first examples of catalysts for nucleophilic additions that comprise a main-group metal and a tri- or tetra-dentate ligand.
La présente invention porte sur un procédé et des catalyseurs utilisés pour ajouter de manière stéréosélective un nucléophile à une liaison .pi. réactive d'un substrat. Les catalyseurs non racémiques, chiraux, de cette invention, constituent les premiers exemples de catalyseurs utilisés dans les additions nucléophiles et comprenant un métal du groupe principal et un ligand tridendate ou tétradentate.
Jacobsen Eric N.
Sigman Matthew S.
Borden Ladner Gervais Llp
President And Fellows Of Harvard College
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