Bidentate coordinating compds - from e.g. polystyrene with chloromethylene gps, useful as complex catalysts for asymmetric synthesis

摘要

The parent (7044632) describes bidentate coordination cpds. useful in soluble catalytic compsns. for asymmetric syntheses, e.g., asymmetric hydrogenation of unsatd. cpds. and of formula: where X and Y are indep. P,As, Sb or N; M is a transition metal; R is (cyclo)aliphatic or aromatic residue and R1 is hydrocarbon residue contg. =1 asymmetric C and opt. O or N, the asymmetric C atom being opt. in a ring; A is an anion and p is the oxidn. state of the metal. The patent of addn. claimes polymeric coordinating cpds. of formulae (II) or (III): where X and Y are as defined; R, R4 and A are (cyclo)aliphatic or aromatic hydrocarbon residue; R5 is H, one of the defined hydrocarbon residues and n is 1,000.