摘要
Ｌｅｗｉｓ酸催化高区域选择合成对位柑菁醛的研究尹笃林，银董红，李谦和（湖南师范大学精细催化合成研究所，长沙４１００８１）关键词月桂烯，丙烯醛，对位柑菁醛，Ｄｉｅｌｓ－Ａｌｄｅｒ反应，Ｌｅｗｉｓ酸，络合催化。１．前言可从松节油资源中制取的月桂烯（ｍｙｒ...
The role of high regioselective synthesis of para myrac aldehyde catalyzed by Lewis acids was investigated systemmatically. The optimal reaction conditions were obtained. In the presence of ZnCl_2 catalyst, at 30℃ for 6h, the yield of myrac aldehyde was 70% (mol) and the content of para myrac aldehyde was as high as 94%(p/m≥15). The reaction mechanism catalyzed by ZnCl_2 was studied by UV, IR and ￣1HNMR methods. It was found that the carbonyl of acrolein complexing with Zn￣(2+) made the C=C bond polarized, which increased its activity and enhanced the regioselectivity of para myrac aldehyde.
出处
《分子催化》
EI
CAS
CSCD
1995年第3期224-228,共5页
Journal of Molecular Catalysis(China)
基金
湖南省自然科学基金
关键词
柑菁醛
络合催化
电子接受体
月桂烯
D-A反应
Myrcene, Acrolein, Para myrac aldehyde, Diels-Alder reaction, Lewis acids, Complex catalysis.
