The para-toluenesulfonic acid-promoted synthesis of 2-substituted benzoxazoles and benzimidazoles from diacylated precursors.

被引:63
作者
DeLuca, MR [1 ]
Kerwin, SM [1 ]
机构
[1] UNIV TEXAS,COLL PHARM,DIV MED CHEM,AUSTIN,TX 78712
关键词
D O I
10.1016/S0040-4020(96)01009-5
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The synthesis of benzoxazoles and benzimidazoles is accomplished by treating N,O-diacylated 2-aminophenols or N,N'-diacylated 1,2-phenylenediamines with p-toluenesulfonic acid under reflux in xylenes or toluene. These reactions are operationally simple and proceed in excellent yield. Copyright (C) 1996 Elsevier Science Ltd
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页码:457 / 464
页数:8
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