5-exo-trigonal cyclization and [3,5] rearrangement of N-aryl benzamidoximes by reaction with nitrile oxides

被引：6

作者：

Risitano, F

Grassi, G

Foti, F

Filocamo, F

机构：

[1] Ist. Di Chim. Dei Composti E., Università, 98166 Messina, Vill. S. Agata

来源：

TETRAHEDRON | 1997年 / 53卷 / 03期

关键词：

D O I：

10.1016/S0040-4020(96)01032-0

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Reaction of N-aryl benzamidoximes 1 with nitrile oxides 2 and 3 in refluxing toluene at 100 degrees C mainly leads to 1,2,4-oxadiazole 4-oxides 4-7 and benzotriazines 8. A facile 5-exo-trigonal cyclization and an unusual [3,5] rearrangement of the non-isolated 1:1 adduct 16, respectively, are postulated to account for the observed results. Copyright (C) 1996 Elsevier Science Ltd

引用

页码：1089 / 1098

页数：10

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