SYNTHESIS AND CATALYTIC PROPERTY OF POLYSTYRENE SUPPORTED PHENYLALANINE SCHIFF BASE COMPLEX OF Mn(Ⅱ) IN AEROBIC OXIDATION OF CYCLOHEXENE

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作者
ZHAO Ganqing XIE Jimin LU Xiaoqing SUN Lu College of Chemistry Chemical Engineering Jiangsu University Zhenjiang China College of Chemistry and Chem Eng Pingdingshan University Pingdingshan China [1 ,2 ,1 ,1 ,1 ,1 ,212013 ,2 ,467000 ]
机构
关键词
Aerobic oxidation; polystyrene supported manganese complex; Cyclohexene; phenylalanine;
D O I
暂无
中图分类号
O621.2 [有机化合物性质];
学科分类号
070303 ; 081704 ;
摘要
The polystyrene supported phenylalanine Schiff base complex of Mn(II) (PS-Sal-Phe-Mn) was prepared with chloromethylated styrene polymer beads, 2,4-dihydroxybenzaldehyde, L-phenylalanine and manganese (II) acetate tetrahyrate., The polymeric ligand and the complex were characterized by FT-IR,, small area X-ray photoelectron spectroscopy (XPS), and ICP-AES. In the presence of the manganese complex, cyclohexene (1) was effectively oxidized by molecular oxygen without reductant. The major products of the reaction were 2-cyclohexen-1-ol (2), 2-cyclohexen-1-one (3) and 2-cyclohexen-1- hydroperoxide (4), which was different with typical oxidation of cyclohexene. The influence of reaction temperature and additive for oxidation had been studied. The selectivity of 2-cyclohexen-1-hydroperoxide varied with reaction time and different additives. The mechanism of cyclohexene oxidation had also been discussed.
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页码:174 / 180
页数:7
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[1]  
Srinivasan K,Michaud P,Kochi J K. J Am Chem Soc . 1986