Bulletin of the Chemical Society of Japan p. 2032 - 2034 (1991)
Update date:2022-08-05
Topics:
Ghani, Essam Abdel
3-(p-Ethoxybenzoyl)acrylic acid (1) reacts with 3-methyl-1-phenyl-2-pyrazolin-5-one to give an addition compound 2.The condensation of 2 with hydrazine hydrate affords 4,5-dihydro-3(2H)-pyridazinone (3a).Reaction of 3a with dimethyl sulfate, diethyl sulfa
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