酸性Cu/ZSM-5-NA催化剂提高肉桂酸脱羧偶联反应活性  

Acidic Cu/ZSM-5-NA Catalyst Enhancement of Cinnamic Acid Decarboxylative Cross-Coupling Reaction Activity

作　　者：傅雯倩[1] 吴蒙雨 陈中淼 王辉[1] FU Wenqian;WU Mengyu;CHEN Zhongmiao;WANG Hui(School of Petrochemical Engineering,Changzhou University,Changzhou 213164,China)

机构地区：[1]常州大学石油化工学院,江苏常州213164

出　　处：《常州大学学报（自然科学版）》2020年第5期35-42,66,共9页Journal of Changzhou University：Natural Science Edition

基　　金：国家自然科学石油化工联合基金资助项目(U1662139);中国石油科技创新基金资助项目(2018D-5007-0401)。

摘　　要：以含有季铵基团的高分子聚合物为模板剂合成酸性的、纳米粒子组装的ZSM-5沸石(ZSM-5-NA),并制备了Cu/ZSM-5-NA催化剂,相比较于ZSM-5-NA及微孔ZSM-5沸石负载的Cu催化剂,其在肉桂酸与四氢呋喃的脱羧偶联反应中表现出优异的催化性能。这是由于Cu/ZSM-5-NA催化剂上的酸性位点不仅能够促进四氢呋喃转变为对应的烷基自由基,而且催化剂中的Cu物种可以与肉桂酸中的羧基氧原子配位,进一步提高底物的反应活性。An acidic ZSM-5 zeolite composed by nanocrystals(ZSM-5-NA)was successfully synthesized using a polymer containing quaternary ammonium group as a soft template,and was used for preparation of Cu/ZSM-5-NA catalyst.Cu/ZSM-5-NA catalyst shows superior catalytic performance in the decarboxylative cross-coupling of the cinnamic acid with tetrahydrofuran,as compared to ZSM-5-NA and conventional ZSM-5 zeolite supported Cu catalyst.This feature should be due to the fact that the acidic sites in Cu/ZSM-5-NA catalyst can facilitate the tetrahydrofuran transformation into corresponding alkyl radical,and the Cu species in the catalyst could be coordinated with carboxyl in cinnamic acid,improving the reaction activity of the substrate.

关 键 词：纳米ZSM-5沸石 酸性 脱羧偶联 肉桂酸 

分 类 号：TQ463.3[化学工程—制药化工]