N-Substituted and N-unsubstituted 1,3-Oxazolium-5-olates cycloaddition reactions with 3-substituted coumarins

被引：22

作者：

Cordaro, Massimiliano ^{[1
]}

Grassi, Giovanni ^{[1
]}

Risitano, Francesco ^{[1
]}

Scala, Angela ^{[1
]}

机构：

[1] Univ Messina, Dipartimento Chim Organ & Biol, I-98166 Messina, Italy

来源：

TETRAHEDRON | 2010年 / 66卷 / 14期

关键词：

Mesoionic compounds; Coumarins; 1,3-Oxazolium-5-oxides; 1,3-Cycloaddition; CYCLO-ADDITION; 5(4H)-OXAZOLONES; AZLACTONES;

D O I：

10.1016/j.tet.2010.02.009

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The 1,3-dipolar cycloaddition reaction of unsymmetrically N-substituted and N-unsubstituted 1,3-oxazolium-5-olates with selected 3-substituted coumarins has been examined Various types of pyrrole derivatives are isolated and their formation seems to be a function of the regio- and diastereochemistry of the initial cycloaddition step (C) 2010 Elsevier Ltd All rights reserved

引用

页码：2713 / 2717

页数：5

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