Preparation of New Nitrogen-Bridged Heterocycles. 27. First Syntheses of 1,3-Thiazino(6,5-b)indolizine Derivatives.

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概要

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• Potassium 2-indolizinethiolates, generated in situ from the treatment of dialkyl 2-[(2-ethoxycarbonylethyl)thio]indolizine-1,3-dicarboxylates with potassium <I>t</I>-butoxide in <I>N</I>,<I>N</I>-dimethylformamide, reacted smoothly with various isothiocyanates and isocyanates with the elimination of alkoxide ions to give new heterocyclic compounds, alkyl 4(3<I>H</I>)-oxo-2-thioxo- and 2,4(3<I>H</I>)-dioxo-2<I>H</I>-1,3-thiazino[6,5-<I>b</I>]indolizine-10-carboxylates, in moderate to good yields. The structures of these l,3-thiazino[6,5-<I>b</I>]indolizine derivatives were determined mainly by elemental analyses and spectral inspections, and the structural assignment was finally confirmed by the single crystal X-ray analyses of two compounds.

• 公益社団法人 日本化学会の論文

著者

• Kakehi Akikazu

  Department Of Chemistry And Material Engineering Faculty Of Engineering Shinshu University

• Ito Suketaka

  Department of Applied Chemistry Faculty of Engineering Nagoya University

• Urushido Kunio

  Department of Chemistry, Faculty of Education, Shinshu University

• Isawa Hidetoshi

  Department of Chemistry and Material Engineering, Faculty of Engineering, Shinshu University

• Sakurai Tosio

  Department of Chemistry, Faculty of Education, Shinshu University

• Enomoto Manabu

  Department of Chemistry and Material Engineering, Faculty of Engineering, Shinshu University

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