CONCAVE WRAPPED PROTONS - REAGENTS FOR CONTRA-THERMODYNAMIC PROTONATIONS

被引：11

作者：

LUNING, U

MULLER, M

机构：

[1] Chemisches Laboratorium, Universität Freiburg, D-W-7800

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1992年 / 31卷 / 01期

关键词：

D O I：

10.1002/anie.199200801

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Good stereoselectivity in the reprotonation of nitronate ions R2C--NO2 is achieved, if the bis-ortho-substituted 2-aryl-1, 10-phenanthroline 1 is added as a buffer. Both for cyclic and acyclic nitronate ions the reaction proceeds via transition states which lead to a thermodynamically less stable product. R = H, Me, Ph.

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页码：80 / 82

页数：3

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