2-Cyano- N ′-[(1,3-diphenyl-1 H -pyrazol-4-yl)methylidene]acetohydrazide in the Synthesis of Nitrogen Heterocycles

S. K. Ramadan; E. A. E. El-Helw; M. E. Azab

doi:10.1134/S1070428019120224

2-Cyano-N′-[(1,3-diphenyl-1H-pyrazol-4-yl)methylidene]acetohydrazide in the Synthesis of Nitrogen Heterocycles

Authors: Ramadan S.K.¹, El-Helw E.A.¹, Azab M.E.¹
Affiliations:
1. Chemistry Department, Faculty of Science
Issue: Vol 55, No 12 (2019)
Pages: 1940-1945
Section: Article
URL: https://journal-vniispk.ru/1070-4280/article/view/221508
DOI: https://doi.org/10.1134/S1070428019120224
ID: 221508

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Abstract

Some interesting nitrogen heterocycles, as well as other products, were synthesized by reactions of 2-cyano-N′-[(1,3-diphenyl-1H-pyrazol-4-yl)methylidene]acetohydrazide with phenyl isothiocyanate/elemental sulfur, 3,4,5-trimethoxybenzaldehyde, 4-hydroxy-1,1′-biphenyl-3-carbaldehyde, 2-oxoquinoline-3-caraldehyde, triethyl orthoformate, ethyl cyanoacetate, and thiosemicarbazide. The structures of all isolated compounds were established from their analytical and spectral data.