130159-58-9

Upstream product

• 932-22-9 4,5-dichloro-2H-pyridazin-3-one 
• 78-95-5 chloroacetone 
• 27807-85-8 4-bromo-3-oxo-butyric acid 

Relevant academic research and scientific papers

Synthesis and Reactions of 1-(2-Oxopropyl)pyridazin-6-ones

Oxopropylation of 4,5-dihalopyridazin-6-ones with chloroacetone afforded the corresponding 1-(2-oxopropyl) derivatives. Reaction of title compound with nucleophiles such as amines, alkoxides were investigated. In addition, selective reduction of 3-nitro-1-(2-oxopropyl)pyridazin-6-ones with iron/ammonium chloride in two phase solutions or zinc in acetic acid gave the corresponding 3-amino or 3-hydroxyimino derivatives.

Concurrent Alkylation-Methoxylation of 4,5-Dihalopyridazin-6-ones and Synthesis of 5-Halo-4-hydroxypyridazin-6-ones

1-Alkyl-5-halo-4-methoxypyridazin-6-ones were synthesized from 1-alkyl-4,5-dihalopyridazin-6-ones by the concurrent alkylation-methoxylation. 1-Alkyl-5-halo-4-hydroxypyridazin-6-ones were also prepared.