SRIVASTAVA R. M.; FREIRE M. V. S.; CHAVES A. S. S. C.; BELTRAO T. M.; CAR+, J. HETEROCYCL. CHEM., 24,(1987) N 1, 101-105
作者:SRIVASTAVA R. M.、 FREIRE M. V. S.、 CHAVES A. S. S. C.、 BELTRAO T. M.、 CAR+
DOI:——
日期:——
Synthesis, spectroscopic studies and the mechanism of formation of 4,5-dihydro-1,2,4-oxadiazoles
作者:Rajendra M. Srivastava、Maria V. S. Freire、AngeloS. S. C. Chaves、Thereza M. Beltrão、Gene B. Carpenter
DOI:10.1002/jhet.5570240121
日期:1987.1
and aromatic aldehydes. None of these compounds were encountered in the literature. The ultraviolet, infrared and proton magnetic resonance spectral studies supported the cyclic structure. Structure determination of a chloral-benzamidoxime adduct, 15, by X-ray crystallography helped us to suggest the mechanism of formation of 4,5-dihydro-1,2,4-oxadiazole from benzamidoxime and an aldehyde. Substances