Expeditious synthesis of 1,3,4-oxadiazole derivatives via sydnones

The clean cyclization of chalcones (1a–c/2a–c) with hydrazine hydrate under microwave irradiation afforded pyrazolines derivatised with sydnone (3d–i/4d–i), which underwent 1,3-dipolar cyclo-addition with acetic anhydride to form pyrazolines appended with 1,3,4-oxadiazoles (5g–l/6g–l). The newly syn...

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Bibliographic Details
Main Authors: D. G. BHADREGOWDA, B. S. SUDHA, RAVINDRA R. KAMBLE
Format: Article
Language:English
Published: Serbian Chemical Society 2008-02-01
Series:Journal of the Serbian Chemical Society
Subjects:
1
3
Online Access:http://www.shd.org.yu/JSCS/Vol73/No2/JSCS-3695.pdf