Studies on Seven-Membered Heterocycles. XXXIV. Syntheses and Reactions of 1-Benzosilepines, 1-Benzogermepines, 1-Benzophosphepines, and 1-Benzarsepines

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概要

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• Flash vacuum pyrolysis of 2a, 7b-dihydrocyclobuta[b]-1-benzometalloles (6a-e), prepared from the corresponding 1-benzometalloles (3) containing Si, Ge, P, or As via three steps, resulted in valence isomerization with ring-opening to give 1,1-dimethyl-1-benzosilepine (7a), 1-methyl-1-phenyl-1-benzosilepine (7b), 1,1-dimethyl-1-benzogermepine (7c), 1-phenyl-1-benzophosphepine 1-oxide (7d), and 1-phenyl-1-benzarsepine 1-oxide (7e). The oxides (7d, e), on treatment with trichlorosilane, underwent deoxygenation to afford 1-phenyl-1-benzophosphepine (7f) and 1-phenyl-1-benzarsepine (7g). The 1-benzometallepines (7a-g) thus obtained are hitherto unknown heterocyclic ring compounds, and their thermal stabilities and several reactions were examined.

• 社団法人日本薬学会の論文
• 1994-12-15

著者

• 土屋 隆

  Faculty of Pharmaceutical Sciences, Hokuriku University

• 安池 修之

  Faculty Of Pharmaceutical Sciences Hokuriku University

• 白鳥 真一

  Faculty of Pharmaceutical Sciences, Hokuriku University

• 栗田 城治

  Faculty of Pharmaceutical Sciences, Hokuriku University

• 土屋 隆

  Faculty Of Pharmaceutical Sciences Hokuriku University

• 栗田 城治

  Faculty Of Pharmaceutical Sciences Hokuriku University

• 白鳥 真一

  Faculty Of Pharmaceutical Sciences Hokuriku University

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