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Synthesis of 3-(2-Oxo-2,3-dihydrobenzo[b]furan-3-ylidenehydrazono)-2,3-dihydrobenzo[b]furan-2-one

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Abstract

Reactions of benzophenone and fluoren-9-one hydrazones with (2-hydroxyphenyl)oxoacetic acid gave [carboxy(2-hydroxyphenyl)methylidenehydrazono](2-hydroxyphenyl)acetic acid which underwent intramolecular cyclization with formation of 3-(2-oxo-2,3-dihydrobenzo[bfuran-3-ylidenehydrazono)-2,3-dihydrobenzo[b]furan-2-one. The symmetric azine was also obtained by reactions of (2-hydroxyphenyl)oxoacetic acid with triphenylphosphoranylidenehydrazones derived from benzophenones, fluoren-9-one, and 1-methyl-2,3-dihydro-1H-indole-2,3-dione.

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Authors and Affiliations

  1. Federal Agency of Health Protection and Social Development, Perm State Pharmaceutical Academy, ul. Lenina 48, Perm, 614900, Russia

    N. A. Pulina

  2. Perm State University, Perm, Russia

    V. V. Zalesov

  3. Perm Regional Forensic Medical Examination Bureau, Perm, Russia

    S. S. Kataev

Authors
  1. N. A. Pulina
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  2. V. V. Zalesov
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  3. S. S. Kataev
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Additional information

Original Russian Text © N.A. Pulina, V.V. Zalesov, S.S. Kataev, 2007, published in Zhurnal Organicheskoi Khimii, 2007, Vol. 43, No. 6, pp. 863–865.

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Pulina, N.A., Zalesov, V.V. & Kataev, S.S. Synthesis of 3-(2-Oxo-2,3-dihydrobenzo[b]furan-3-ylidenehydrazono)-2,3-dihydrobenzo[b]furan-2-one. Russ J Org Chem 43, 861–863 (2007). https://doi.org/10.1134/S1070428007060103

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  • DOI: https://doi.org/10.1134/S1070428007060103

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