Studies on Acetylenic Compounds. XXV. Ring Closure. (5). New Synthetic Method of Heterocyclic Compounds from α-Amino-and α-N-substitued Aminoacetylenic Compounds.
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概要
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A new ring closure of α-amino-and α-N-substituted aminoacetylenic compounds has been studied. 2-Methylimidazole and 2-thiazolethiol derivatives were easily synthesized by heating α-aminoacethylenic compound with thioacetamide and carbon disulfide, respectively. By treating 1-(2-propynyl)-urea, 1-(2-propynyl)-thiourea and 1-(2-propynyl)-benzamide with concentrated sulfuric acid, there were obtained 2-imidazolone, 2-imidazolethiole and 2-phenyloxazole derivatives, respectively.
- 公益社団法人日本薬学会の論文
- 1962-11-25
著者
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