一种新型手性席夫碱的合成及其在不对称环丙烷化反应中的催化性能  

Synthesis of a New C_2-Symmetric Chiral Schiff Base and Its Catalytic Performance in Asymmetric Cyclopropanation

作　　者：李琛[1] 张维萍[1] 姚小泉[1] 刘秀梅[1] 陆世维[1] 韩秀文[1] 包信和[1] 

机构地区：[1]中国科学院大连化学物理研究所催化基础国家重点实验室,大连116023

出　　处：《催化学报》2000年第3期289-291,共3页

摘　　要：A new C 2 symmetric chiral Schiff base compound A with relatively flexible chiral environment was synthesized from L (+) tartaric acid. Its structure was determined by NMR, IR, MS etc, and its preponderant conformation was modeled by CS Chem 3D Program. The results showed that its structure is not in a plane and has a big chiral cavity. It was showed that the complex B has different catalytic performance in asymmetric cyclopropanation of styrene and DMHD (2,5 dimethyl 2,4 hexadiene) with diazoacetate. The catalytic mechanism was also discussed.A new C 2 symmetric chiral Schiff base compound A with relatively flexible chiral environment was synthesized from L (+) tartaric acid. Its structure was determined by NMR, IR, MS etc, and its preponderant conformation was modeled by CS Chem 3D Program. The results showed that its structure is not in a plane and has a big chiral cavity. It was showed that the complex B has different catalytic performance in asymmetric cyclopropanation of styrene and DMHD (2,5 dimethyl 2,4 hexadiene) with diazoacetate. The catalytic mechanism was also discussed.

关 键 词：烯烃 不对称环丙烷化 手性席夫碱 催化性能 

分 类 号：O643[理学—物理化学]