Synthesis and properties of a diastereopure ionic liquid with planar chirality

被引：40

作者：

Ishida, Yasuhiro ^{[1
]}

Sasaki, Daisuke ^{[1
]}

Miyauchi, Hiroyuki ^{[1
]}

Saigo, Kazuhiko ^{[1
]}

机构：

[1] Univ Tokyo, Grad Sch Engn, Dept Chem & Biotechnol, Bunkyo Ku, Tokyo 1138656, Japan

来源：

TETRAHEDRON LETTERS | 2006年 / 47卷 / 45期

关键词：

chiral recognition; cyclophane; diastercoselective synthesis; ionic liquid; planar chirality;

D O I：

10.1016/j.tetlet.2006.08.101

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

An imidazolium-based ionic liquid with cyclophane-type planar chirality was synthesized in an optically pure form for the first time. The resultant ionic liquid existed as a liquid at room temperature (T-g = -35 degrees C), and was found to be applicable as an NMR chiral shift reagent for racemic anions. Excellent robustness of the ionic liquid to a highly elevated temperature (270 degrees C) was proved from the viewpoints of isomerization and thermal decomposition. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：7973 / 7976

页数：4

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