Soluble polyester-supported chiral phosphines

Details Soluble polyester-supported chiral phosphines Soluble polyester-supported chiral phosphines

1998-03-06

1999-11-23

Geist, Gary

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

528272, 528287, 528288, 556 19, 560 44, 564 15, 548402, C07F 902, C07F 1502, C07C22972, C07D20700

Patent

active

059903180

ABSTRACT:
Novel soluble polyester-supported chiral phosphines have been prepared and have been used in the preparation of rhodium and ruthenium catalysts. Such polymer-supported catalysts show high catalytic activities and enantioselectivities. In the case of Ru(BINAP) catalyst supported on soluble polyester, the resulting catalysts were found to be more active than those of the corresponding homogeneous Ru(BINAP) catalysts in the asymmetric hydrogenation of 2-arylpropenoic acids. These soluble polyester-supported catalysts can be easily separated from the reaction mixture and then be reused without loss of activity and selectivity.

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