Thianaphtheno[2,3-c]pyridazine誘導体の合成
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概要
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3-Phenacylidenebenzothiophen-2-one (IIIa) was obtained in a good yield by the application of triphenylphosphinebenzoylmethylene (IIa) to thionaphthenequinone (I). The reduction of IIIa with Na_2S_2O_4 in EtOH-H_2O produced the corresponding dihydro compounds (IV) (enol form) and (V) (keto form). Reaction of IV and V with hydrazine hydrate in AcOH afforded 3-phenylthianaphtheno [2,3-c] pyridazine (VII).
- 公益社団法人日本薬学会の論文
- 1972-04-25
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