Through the asymmetric reduction of poly(methyl vinyl ketone)and copolymer of mehtyl vinyl ketone and styrene, optical polymers with chiral alcohol groups were synthesized. The effect of measuring solvents on the specific rotatory power of the reduction products was investigated. It was found that the optical rotation was mainly caused by the chiral alcohol groups in the molecules of the syrtthesized polymeric alcohols.

Four 1,3-thiazolidine chiralligands with various aromatic substituents were synthesized by condensation of L-cysteine or its ester with aldehyde or ke-tone.The catalysts prepared by the reaction of these ligands with I Rh(COD)-Cl]2 were used to catalyze the asymmetric hydrosilylation of acetophenone.TWO high reactive and selective chiral ligands with pyridyl were sifted.The chemical yield of the catalytic reaction is up to 90%,the optical yield could reach about 80%(e.e).The coordination structure of the catalysts was discussed.

由L-半胱氨酸申酯导a吡啶甲醛缩合制备了2（a-毗啶基）-4-羧甲基-1，3-噻唑烷手性配体。用该手性配体与[Rh（COD）]2反直原位生成的Rh（Ⅰ）配合物为催化剂进行了苯己酮的不对称硅氢化反应。反应的化学产率达91%，光学产率达82.1%，考察了各种反应条件对催化剂性能的影响。

用分级结晶或柱层析方法对2-（2-吡啶基）-4-羧甲基-1，3-噻唑烷（A）及2-甲基-2（2-吡啶基）-4-羧甲基-1，-3噻唑烷（B）两种手性配体进行提纯，分别考察了其与[Rh（COD）CL]2制备的在位化剂催分苯乙酮的不对称硅氢化反应，发现只有噻唑烷环上的C4位手性中心对催化反应结果有影响，其C2位手性中心在Rh（1）催化下发生了快速差向异构化反应。

The title ligand (A) was synthesized through condensation of 2-pyidine aldehyde and L-methyl cysteine and L-methyl cysteine hydrochloried. The isomers of (A) were separated by column chromatography. The in-situ prepared catalyst from (A) with [Rh(COD)Cl]2 (COD: cycloocta-diene) has been used to catalyze the asymmetric hydorsilylation of acetophenone. The results showed that only the configuration of C4, but not that of C2 affected the optical yield and configuration of the products.