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Electrophilic substitution in N-aryl-2-pyrazolines. 4. Azo coupling reactions

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

4-R-Phenyldiazonium chlorides enter into the azo coupling reaction with 2-pyrazoline derivatives at the para position of the N-aromatic nucleus. The reaction is very sensitive to steric and electronic effects of the substituting groups in the pyrazolines. The electronic spectra and acid-base properties of the synthesized azopyrazolines are discussed.

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Authors and Affiliations

  1. A. M. Gor'kii Khar'kov State University, 310077, Khar'kov

    V. D. Orlov, M. A. Aziz, N. O. Mchedlov-Petrosyan & P. K. D. Asoka

Authors
  1. V. D. Orlov
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  2. M. A. Aziz
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  3. N. O. Mchedlov-Petrosyan
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  4. P. K. D. Asoka
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Additional information

See [1] for Communication 3.

Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1511–1516, November, 1985.

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Orlov, V.D., Aziz, M.A., Mchedlov-Petrosyan, N.O. et al. Electrophilic substitution in N-aryl-2-pyrazolines. 4. Azo coupling reactions. Chem Heterocycl Compd 21, 1246–1251 (1985). https://doi.org/10.1007/BF00515222

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  • DOI: https://doi.org/10.1007/BF00515222

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