Synthesis of Chitosan-Supported Imine Palladacycles and Their Catalytic Performances

Chin. J. Org. Chem. ›› 2007, Vol. 27 ›› Issue (01): 87-91. Previous Articles Next Articles

Original Articles

壳聚糖亚胺环钯化合物的合成及其催化性能研究

刘蒲*^,a，刘晔^b，李晶玉^a，刘一真^a
卢伟鹏^a，王向宇^a，李利民^a

(^a郑州大学化学系郑州 450052)
(^b华东师范大学化学系上海市绿色化学与化工过程绿色化重点实验室上海 200062)

收稿日期:2005-09-14 修回日期:2006-04-10 发布日期:2006-12-30
通讯作者: 刘蒲

Synthesis of Chitosan-Supported Imine Palladacycles and Their Catalytic Performances

LIU Pu*^,a,LIU Ye^b,LI Jing-Yu^a,LIU Yi-Zhen^a,LU Wei-Peng^a
WANG Xiang-Yu^a,LI Li-Min^a

(^aDepartment of Chemistry, Zhengzhou University, Zhengzhou 450052)
(^bShanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry,
East China Normal University, Shanghai 200062)

Received:2005-09-14 Revised:2006-04-10 Published:2006-12-30
Contact: LIU Pu

Abstract

Chitosan-supported imine palladacycle catalysts were synthesized from chitosan and benzaldehyde or its derivatives via grafting to form chitosan Schiff base, followed by treatment with Li₂PdCl₄ in methanol. These natural polymeric palladacycle catalysts are stable to air and moisture, and can catalyze the cross coupling reaction of aryl iodide with PhCH＝CH₂ in high activity and selectivity. It can be reused several times by the simple filtration separation from the reaction mixture. It can provide an easy prepared and green catalytic system that is practical and highly active to synthesize stilbene and its derivatives.

Key words: imine palladacycle, coupling reaction, stereoselectivity, chitosan Schiff base

Cite this article

LIU Pu*^,a,LIU Ye^b,LI Jing-Yu^a,LIU Yi-Zhen^a,LU Wei-Peng^a
WANG Xiang-Yu^a,LI Li-Min^a. Synthesis of Chitosan-Supported Imine Palladacycles and Their Catalytic Performances[J]. Chin. J. Org. Chem., 2007, 27(01): 87-91.

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壳聚糖亚胺环钯化合物的合成及其催化性能研究

Synthesis of Chitosan-Supported Imine Palladacycles and Their Catalytic Performances

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