Syntheses of Benzo[<I>e</I>]-1,3,4-triazepine Derivatives from 2-Aminobenzophenones

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概要

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• 2-Aminobenzophenone semicarbazones (II) or 2-aminobenzophenone phenylhydrazones (III) were cyclized to 3,7-disubstituted 5-phenyl-2,3-dihydro-1<I>H</I>-benzo[<I>e</I>]-1,3,4-triazepines (IV) by treating them with paraformaldehyde. On the other hand, 3,7-disubstituted 2-oxo-5-phenyl-2,3-dihydro-1<I>H</I>-benzo[<I>e</I>]-1,3,4-triazepines (V) were prepared by the fusion of II at 190–195°C or by the treatment of III with phosgene. In the latter reactions, 1-carboxy derivatives (VI) of V were obtained by using two equimolar amounts of phosgene. Vf was treated with sodium ethoxide to give a ring-cleavage product, 5-chloro-2-ethoxycarbonylaminobenzophenone phenylhydrazone (VIIIf), which was then fused to afford 6-chloro-1,2-dihydro-2-oxo-4-phenylquinazoline (VIIb).

• 公益社団法人 日本化学会の論文

著者

• Sano Mitsuru

  Department Of Chemistry College Of General Education Nagoya University

• Ishiwaka Takumi

  Department of Applied Chemistry, Faculty of Engineering, University of Osaka Prefecture

• Isagawa Kakuzo

  Department of Applied Chemistry, Faculty of Engineering, University of Osaka Prefecture

• Fushizaki Yasaburo

  Department of Applied Chemistry, Faculty of Engineering, University of Osaka Prefecture

• Sano Mitsuru

  Department of Applied Chemistry, Faculty of Engineering, University of Osaka Prefecture

関連論文

• Magnetic and Optical Properties of (BEDT-TTF)CuCl_2 Complex : II. LOW TEMPERATURE PROPERTIES OF SOLIDS : Miscellaneous : Phonon, Structure etc.
• Reaction of 2-Aminobenzophenones with Aliphatic Acids in the Presence of Polyphosphoric Acid
• Syntheses of Benzo[e]-1,3,4-triazepine Derivatives from 2-Aminobenzophenones
• Electronic structure of (BEDT-TTF)CuCl2 complex.
• Isomers of the diamminebis(trimethylenediamine)cobalt(III) complex.

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