New Reactions of Tropylium Salts with 4-Nitrobenzohydrazide, Semicarbazide, Thiosemicarbazide, and N-Benzylurea

Abstract

Reactions of tropylium tetrafluoroborate with 4-nitrobenzohydrazide, semicarbazide hydrochloride, thiosemicarbazide, and N-benzylurea afforded the corresponding mono- and/or ditropyl derivatives, N′-(cyclohepta-2,4,6-trien-1-yl)-4-nitrobenzohydrazide, N′,N′-di(cyclohepta-2,4,6-trien-1-yl)-4-nitrobenzohydrazide, 2,2-di(cyclohepta-2,4,6-trien-1-yl)hydrazine-1-carboxamide, N-2-di(cyclohepta-2,4,6-trien-1-yl)hydrazinecarbothioamide, and N-benzyl-3-(cyclohepta-2,4,6-trien-1-yl)urea, as potential biologically active compounds.

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Funding

This study was performed under financial support by the Russian Foundation for Basic Research (project no. 19-03-00888).

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Correspondence to L. P. Yunnikova.

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Yunnikova, L.P., Akentʼeva, T.A. & Likhareva, Y.E. New Reactions of Tropylium Salts with 4-Nitrobenzohydrazide, Semicarbazide, Thiosemicarbazide, and N-Benzylurea. Russ J Org Chem 56, 2244–2247 (2020). https://doi.org/10.1134/S1070428020120313

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Keywords:

  • 4-nitrobenzohydrazide
  • semicarbazide
  • thiosemicarbazide
  • N-benzylurea
  • tropylium tetrafluoroborate