Reaction of Triethyl Phosphonoacetate Anion with Phenylhydrazones: A New Method for the Preparation of 3(2<i>H</i>)-Pyridazinones
作者:Himatkumar V. Patel、Kavita A. Vyas、Sudhanshu P. Pandey、Francis Tavares、P. S. Fernandes
DOI:10.1080/00397919108019791
日期:1991.4
Various 5,6-disubstituted-2-phenyl-3(2H)-pyridazinones 4 have been synthesised by reacting triethyl phosphonoacetate anion with monophenylhydrazone of 1,2-dicarbonyl compounds 2.
A New and Convenient Synthesis of 3(2<i>H</i>)-Pyridazinones by Reacting Carbanion of Ethyl Trimethylsilylacetate with Phenylhydrazones
作者:Himatkumar V. Patel、Kavita A. Vyas、Sudhanshu P. Pandey、Francis Tavares、P. S. Fernandes
DOI:10.1080/00397919108021785
日期:1991.9
A one-pot synthesis of 5,6-disubstituted-2-phenyl-3(2H)-pyridazinones 4 is achieved on treatment of carbanion of ethyl trimethylsilylacetate with phenylhydrazones of 1,2-dicarbonyl compounds 1.
105. The conversion of sucrose into pyridazine derivatives. Part II. 4-Amino-2-phenyl-6-methyl-3-pyridazone, 4-amino-2-(p-nitrophenyl)-6-methyl-3-pyridazone, and their sulphanilamido-derivatives