NEW SYNTHETIC REACTIONS BASED ON THE ONIUM SALTS OF AZA-ARENES

被引：320

作者：

MUKAIYAMA, T

机构：

[1] Department of Chemistry, Faculty of Science, The University of Tokyo, Tokyo, 113, Hongo

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1979年 / 18卷 / 10期

关键词：

Aza‐arenes; Onium compounds; Synthetic methods;

D O I：

10.1002/anie.197907073

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Effective syntheses employing 2‐halogenated pyridinium, benzoxazolium, benzothiazolium, and pyridinium salts have been accomplished in the absence of strong acids and bases. Activation of carboxylic acids or alcohols with these onium salts leads to 2‐acyloxy and 2‐alkoxy intermediates which can be transformed into esters, amides, thiol esters, (macrocyclic) lactones, acid fluorides, olefins, allenes, carbodiimides isocyanates, isothiocyanates, nitriles, and isocyanates. The possibility of performing stereospecific syntheses (involving configurational inversion) with onium salts deserves attention. Copyright © 1979 by Verlag Chemie, GmbH, Germany

引用

页码：707 / 721

页数：15

共 108 条

[1] ULTRAVIOLET SPECTRA AND STRUCTURES OF THE PYRIDO [1,2-A]PYRIMIDONES [J].