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Structures of the products of formylation of 1,3,5-triphenyl- and 1,5 -diphenyl-3-stryl-2-pyrazolines

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

It was established by means of IR and PMR spectra and chemical transformations that the products of the Vilsmeier formylation of 1,3,5-triphenyl- and 1,5-diphenyl-3-styryl-2-pyrazolines are the corresponding 1-(p-formylphenyl)-2-pyrazolines. The frequencies of the stretching vibrations of the carbonyl group and the chemical shift of the aldehyde proton of these compounds indicate considerable conjugation of the p electrons of the N1 atom of the pyrazoline ring with the aldehyde group.

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Authors and Affiliations

  1. All-Union Scientific-Research Institute of Single Crystals, Scintillation Materials, and Ultrapure Chemical Substances, Kharkov

    L. A. Kutulya, A. E. Shevchenko & Yu. N. Surov

Authors
  1. L. A. Kutulya
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  2. A. E. Shevchenko
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  3. Yu. N. Surov
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 250–253, February, 1975.

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Kutulya, L.A., Shevchenko, A.E. & Surov, Y.N. Structures of the products of formylation of 1,3,5-triphenyl- and 1,5 -diphenyl-3-stryl-2-pyrazolines. Chem Heterocycl Compd 11, 215–217 (1975). https://doi.org/10.1007/BF00471403

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  • DOI: https://doi.org/10.1007/BF00471403

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