932-22-9, Name is 4,5-Dichloro-3(2H)-pyridazinone, belongs to pyridazine compound, is a common compound. Application In Synthesis of 4,5-Dichloro-3(2H)-pyridazinoneIn an article, once mentioned the new application about 932-22-9.
1-Alkyl-4,5-dichloropyridazin-6-ones and (4,5-dichloro-6-oxopyridazin-1-yl)methylcarboxylates were synthesized from 4,5-dichloro-1-hydroxymethylpyridazin-6-one and the corresponding alkyl halides or carboxylic acid chlorides. Also the reaction mechanisms via a fragmentation of retro-ene type are discussed.
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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N2332 – PubChem