2,2'-disubstituted 1,1'-diphosphino-ferrocenes and...

Details 2,2'-disubstituted 1,1'-diphosphino-ferrocenes and... 2,2'-disubstituted 1,1'-diphosphino-ferrocenes and...

C - Chemistry, Metallurgy

07

F

C07F 17/02 (2006.01) C07C 45/50 (2006.01)

Patent

CA 2203749

The present invention relates to optically active and racemic C2-symmetric 2,2'- disubstituted 1,1'-diphosphino-ferrocenes of the formula Ia, to optically active and racemic asymmetric 1',2-disubstituted 1-phosphino-ferrocenes of the formula Ib and to achiral 2,2'-disubstituted 1,1'-diphosphino-ferrocenes of the formula II, to processes for preparing them, especially in accordance with the principle of asymmetric ortho-lithiation, to their use as ligands for transition metal complexes, to transition metal complexes comprising them, and to the use of the transition metal complexes as catalysts, especially in asymmetric syntheses.

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