Two new cinchona alkaloids copolymers (PMA-BQTP and PMA-QN) have been synthesized by copolymerization and their complexes (PMA-BQTP-PdCl 2 and PMA-QN-PdCl 2 ) have been prepared. Their structures were characterized by FTIR, GPC, and element analysis. The catalytic activity of PMA-QN-PdCl 2 in the heterogeneous catalytic asymmetric reduction of aromatic ketone by sodium borohydride was studied. The results showed that the polymer complex catalyzed the reduction of aromatic ketone to get alcohol in high optical yield, but their catalytic efficiency was largely dependent on the aromatic ketone and solvent system, which relate to the accessibility of the catalytic active site. And the PdCl 2 /polymeric alkaloid complex can be simply recovered at the end of the reaction by centrifugation and then reused without serious losing of activity or enantioselectivity.

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