Chemistry of Heterocyclic Compounds p. 1246 - 1250 (1985)
Update date:2022-09-26
Topics:
Orlov, V. D.
Aziz, M. A.
Mchedlov-Petrosyan, N. O.
Asoka, P. K. D.
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 substituted azopyrazolines are discussed.
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