Sengupta; Anand; Pandey, Journal of the Indian Chemical Society, 1987, vol. 64, # 10, p. 643 - 645
作者:Sengupta、Anand、Pandey
DOI:——
日期:——
SENGUPTA, ANIL K.;ANAND, SMITA;PANDEY, A. K., J. INDIAN CHEM. SOC., 64,(1987) N 10, 643-645
作者:SENGUPTA, ANIL K.、ANAND, SMITA、PANDEY, A. K.
DOI:——
日期:——
Tautomerism of guanidines studied by 15N NMR: 2-hydrazono-3-phenylquinazolin-4(3H)-ones and related compounds
作者:Ion Ghiviriga、Bahaa El-Dien M. El-Gendy、Peter J. Steel、Alan R. Katritzky
DOI:10.1039/b907577a
日期:——
2-Hydrazono-3-phenylquinazolin-4(3H)-ones 11a–i are shown by 15N NMR to exist in DMSO solution predominantly as the imino tautomers B and not the amino tautomers A. 2-Hydrazino-benzimidazole derivative 12 and 2-hydrazino-4,6-dimethylpyrimidine derivative 13 were found to exist predominantly as the amino tautomers.