ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 17, Number 1
JKCSEZ 17(1)
February 20, 1973 

2,6-Disubstituted-3-pyridazinones were synthesized by the reactions of r,r,r-trichloroethylidene-m-nitroacetophenone with phenylhydrazine and substituted phenylhydrazines, and hydrazone was isolated as an intermediate from the reaction with 2, 4-dinitrophenylhydrazine. From the reaction with hydrazine hydrate 3-(m-nitrophenyl)-5-trichloromethyl-2-pyrazoline was obtained in good yield. The effect of substituents on phenyl group in the reaction of r,r,r-trichloroethylidene-m-nitroacetophenone with substituted phenylhydrazines was also discussed.