摘要：

New Schiff base chiral polymers was synthesized. The asymmetric addition of diethyl zinc to aldehyde was achieved catalyzed by Ti(Ⅳ)/polymer which was formed in situ from chiral polymer and \{Ti(O i Pr) 4.\} Optical alcohols were obtained in a high yield with e.e. up to 84.5%. The effects of temperature, complex time, structure of substrate etc. on the catalytic activity and enantio selectivity were studied in detail. The reaction mechanism was proposed.

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