Cu-Nanoparticles: efficient catalysts for the oxidative cyclization of Schiffs' bases

被引：101

作者：

Kidwai, Mazaahir ^{[1
]}

Bansal, Vikas

Saxena, Amit

Aerry, Swati

Mozumdar, Subho

机构：

[1] Univ Delhi, Green Chem Res Lab, Delhi 110007, India

[2] Univ Delhi, Lab Nanobiotechnol, Delhi 110007, India

来源：

TETRAHEDRON LETTERS | 2006年 / 47卷 / 46期

关键词：

Cu-Nanoparticles; 2-arylbenzoxazole; Schiffs' bases; oxidative cyclization;

D O I：

10.1016/j.tetlet.2006.09.066

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Cu-Nanoparticles provide an efficient catalysis for the synthesis of 2-arylbenzoxazoles by the coupling of aromatic or heteroaromatic aldehydes with 2-aminophenol though the oxidative cyclization of the Schiffs' bases using 10 mol % of the Cu-nanoparticles in the presence of K2CO3 in MeOH. This method avoids the use of metal oxide or organic oxidizing agents, namely, DDQ or strong acids such as polyphosphoric acid or boric acid. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：8049 / 8053

页数：5

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