Syntheses of 4-(5-oxo-1,2,4-triazol-3-yl)-sydnones and 4-(4-arylamino-5-oxo-1,2,4-triazol-3-yl)-sydnones from Sydnone Derivatives and Their Fragments
作者:W. F. Kuo、C. Y. Lee、M. Y. Yeh
DOI:10.1002/jccs.200000027
日期:2000.2
4-(5-oxo-1,2,4-triazol-3-yl)-sydnones 11 and 4-(4-arylamino-5-oxo-1,2,4-triazol-3-yl)-sydnones 13 have been obtained from a-chloroformylarylhydrazine hydrochloride 2. Moreover, the intermediates, including 3, 4, 9 and 10, in this study are synthetically informative and valuable. It is also noteworthy that three reactants, 1, 2 and sydnonecarbaldehydes, were prepared from sydnone derivatives and their