Recyclization of 1,3,4-oxadiazoles and bis-1,3,4-oxadiazoles into 1,2,4-triazole derivatives. Synthesis of 5-unsubstituted 1,2,4-triazoles

被引：0
|
作者：
Korotkikh N.I. [1 ]
Kiselev A.V. [1 ]
Knishevitsky A.V. [1 ]
Raenko G.F. [1 ]
Pekhtereva T.M. [1 ]
Shvaika O.P. [1 ]
机构：
[1] L.M. Litvinenko Institute of Physical Organic and Coal Chemistry, National Academy of Sciences of Ukraine
来源：
Chemistry of Heterocyclic Compounds | 2005年 / 41卷 / 7期
关键词：
1,3,4-oxadiazoles; 3,3′- and 4,4′-bridge linked bis-1,2,4-triazoles; 3,4-diaryl-1,2,4-triazoles; Precursors of stable carbenes; Recyclization reaction;
D O I：
10.1007/s10593-005-0240-2
中图分类号：
学科分类号：
摘要：
Efficient methods have been developed for obtaining precursors of stable carbenes, viz. 5-unsubstituted 3,4-diaryl-1,2,4-triazoles and 3,3′- or 4,4′-bridge linked bis-1,2,4-triazoles, by the recyclization of 5-unsubstituted 1,3,4-oxadiazoles or p-phenylenebis-1,3,4-oxadiazole with anilines or aromatic diamines in the presence of trifluoroacetic acid or with aniline hydrochlorides in pyridine. ©2005 Springer Science+Business Media, Inc.
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页码：866 / 871
页数：5
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