Asymmetric Reduction of Phenylglyoxylic Acid Using Poly-L-Valine Modified Graphite Electrode

Chinese Journal of Applied Chemistry ›› 1996, Vol. 0 ›› Issue (6): 78-80.

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Asymmetric Reduction of Phenylglyoxylic Acid Using Poly-L-Valine Modified Graphite Electrode

Chen Gang, Lu Jiaxing, Xu Chengtian, Gao Jiannang, Chen Liang, Zhang Wuchang

Department of Chemistry, East China Normal University, Shanghai 200062

Received:1996-02-16 Revised:1996-08-12 Published:1996-12-10 Online:1996-12-10

Abstract

Abstract: Poly-L-valine was modified on graphite to produce polymer modified graphite electrode(Ce/PLV) on which phenylglyoxylic acid(PGA) was reduced to S(+)-mandelic acid(SMA).By using Ce/PLV,the optical yield(o.y.) of SMA and conversion percent of PGA were measured as functions of various factors.The highest o.y. obtained under optimized conditions was 63.8%.A possible stereochemical model of asymmetric reduction of PGA was proposed.

Key words: poly-L-valine, modified electrode, asymmetric reduction, phenylglyoxylic acid

Chen Gang, Lu Jiaxing, Xu Chengtian, Gao Jiannang, Chen Liang, Zhang Wuchang. Asymmetric Reduction of Phenylglyoxylic Acid Using Poly-L-Valine Modified Graphite Electrode[J]. Chinese Journal of Applied Chemistry, 1996, 0(6): 78-80.

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Asymmetric Reduction of Phenylglyoxylic Acid Using Poly-L-Valine Modified Graphite Electrode

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