期刊
TETRAHEDRON
卷 65, 期 43, 页码 8821-8831出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2009.08.059
关键词
-
资金
- Korean Government through a Korea Research Foundation [KRF-2005-C00250]
- Kwangwoon University
One-pot reduction-triggered heterocyclizations from 2-nitrophenols to benzoxazoles and from 1-aryl-2-nitroethanones to oxazoles were investigated. In the presence of indium/AcOH in benzene at reflux, 2-nitrophenols and R-C(OMe)(3) (R=H, Me, Ph) produced excellent yields of corresponding benzoxazoles within an hour. Similarly, 1-aryl-2-nitroethanones and Ph-C(OMe)(3) in the presence of indiurn/AcOH in acetonitrile transformed into the corresponding oxazoles with good yields. (c) 2009 Elsevier Ltd. All rights reserved.
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