Synthesis of 4-hydroxy-4,5-dihydro-1,2,4-triazol-5-ones
摘要:
A series of hydroxamic acid ethoxycarbonylhydrazides was obtained by reactions of ester ethoxycarbonylhydrazones with hydroxylamine. The corresponding 3-substituted 4-hydroxy-4,5-dihydro-1,2,4-triazol-5-ones were synthesized by cyclization of these hydroxamic acid derivatives in basic medium.
Palladium(II) and platinum(II), (IV) complexes with N-1-acylacetamidrazones (L1-L5) and N-1-acyl-2-phenylacetamidrazones (L6-L9) are described. The complexes have been prepared by reaction of the corresponding metal chloride with the ligand in the required stoichiometrical ratio and were characterized by chemical analyses and physical measurements. The stereochemistry has been assigned on the basis of IR, far IR spectroscopy, electronic reflectance spectra and molar conductivity values. (C) 1998 Elsevier Science Ltd. All rights reserved.
Cocco; Olla; Onnis, Il Farmaco, 1992, vol. 47, # 2, p. 229 - 238
作者:Cocco、Olla、Onnis、Schivo、De Logu
DOI:——
日期:——
Synthesis of 4-hydroxy-4,5-dihydro-1,2,4-triazol-5-ones
作者:A. Aykut İkizler、Kemal Sancak
DOI:10.1007/bf00810474
日期:1992.3
A series of hydroxamic acid ethoxycarbonylhydrazides was obtained by reactions of ester ethoxycarbonylhydrazones with hydroxylamine. The corresponding 3-substituted 4-hydroxy-4,5-dihydro-1,2,4-triazol-5-ones were synthesized by cyclization of these hydroxamic acid derivatives in basic medium.
UEN R.; IKIZLER A., CHIM. ACTA TURC., 1975, 3, NO 2, 113-132