Acylation of sydnones with acetic anhydride in the presence of montmorillonite K-10

被引：14
|
作者：
Turnbull, K
George, JC
机构：
[1] Department of Chemistry, Wright State University, Dayton
来源：
SYNTHETIC COMMUNICATIONS | 1996年 / 26卷 / 14期
关键词：
D O I：
10.1080/00397919608004593
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Various 4-acetyl sydnones 2 can be prepared in good yield by reaction of the corresponding 3-arylsydnones (cf. 1) with acetic anhydride at similar to 110 degrees C catalyzed by Montmorillonite K-10. The reaction fails where an ortho-keto moiety is present; therein sydnone ring cleavage occurs to form the corresponding indazole 3.
引用
收藏
页码：2757 / 2764
页数：8
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