Pd(OAc)2 catalyzed synthesis of 2-aryl- and 2-heteroaryl-benzoxazoles and benzothiazoles in imidazolium ionic liquids (ILs) without additives and with recycling/reuse of the IL

被引：40

作者：

Kalkhambkar, Rajesh G. ^{[1
]}

Laali, Kenneth K. ^{[1
]}

机构：

[1] Univ N Florida, Dept Chem, Jacksonville, FL 32224 USA

来源：

TETRAHEDRON LETTERS | 2012年 / 53卷 / 32期

关键词：

Benzoxazoles; Benzothiazoles; Synthesis from Schiff base; Pd(OAc)(2); Ionic liquids; DIRECT ARYLATION; PROPARGYLIC ALCOHOLS; BENZOXAZOLES; CONDENSATION; CYCLIZATION; MECHANISM; OXIDANT; OXAZOLE; AZOLES; ARYL;

D O I：

10.1016/j.tetlet.2012.05.155

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A facile, high yielding, method for the synthesis of a library of 2-aryl- and 2-heteroaryl-benzoxazoles and benzothiazoles from readily available Schiff bases is reported employing catalytic amounts of Pd(OAc)(2) in imidazolium ionic liquids (bmim)BF4 and (bmim)PF6 without ligands and/or additives. Simple product isolation and recycling/re-use of the IL are additional advantages of this method. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：4212 / 4215

页数：4

共 35 条

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