Mild Oxidative Cyclization of Sydnone-Benzoylhydrazone with Lead Oxide to 2,5-Disubstituted-1,3,4-Oxadiazole-Sydnone Hybrid Derivatives

作者:Chiang Kuo Chen; Wong Fung Fuh*; Hung Chih Hao; Huang Yu Ying; Chang Po Wei; Liao Yang Ming; Lin Shao Kai
来源:Journal of Heterocyclic Chemistry, 2009, 46(1): 111-115.
DOI:10.1002/jhet.21

摘要

The mild oxidation of sydnone-benzoylhydrazone hybrids with lead oxide in acetic acid/dichloromethane solution inducted their intramolecular cyclization to provide the corresponding 2,5-disubstituted-1,3,4-oxidiazole derivatives. The sydnone moiety has been efficient preserved for the future work in the mild oxidation.

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