Stable Five-Membered-Ring Allenes with Second-Row Elements Only: Not Allenes, But Zwitterions

被引：54

作者：

Christl, Manfred ^{[1
]}

Engels, Bernd ^{[1
]}

机构：

[1] Univ Wurzburg, Inst Organ Chem, D-97074 Wurzburg, Germany

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2009年 / 48卷 / 09期

关键词：

cyclic allenes; pyrazolium ions; zwitterions; COMPUTATIONAL ASSESSMENT; ELECTRONIC-STRUCTURES; DERIVATIVES;

D O I：

10.1002/anie.200803476

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Chemical Equation Presented) A pyrazole derivative, considered as the stable five-membered cyclic allene 1a by Dyker, Bertrand, et al., is reinterpreted to be a zwitterion 1b. It is shown that the bonding characteristics typical for an allene are not possible for structure 1a. Ar=2,6-dimethylphenyl. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：1538 / 1539

页数：2

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