Twelve novel chalcone derivatives were prepared using the Claisen–Schmidt condensation
reaction. The reaction of 4‐acetyl‐5‐furan/thiophene‐pyrazole derivatives 5 with the …

A new series of nitrogen heterocycles encompassing a quinoline scaffold such as
imidazolone, benzimidazole, triazinone, triazole, and thiazole derivatives was synthesized …

A new series of some 1, 3‐diphenylpyrazole‐based heterocycles were constructed from 2‐
cyano‐3‐(1, 3‐diphenyl‐1 H‐pyrazol‐4‐yl) propenoyl chloride (1). The titled acid chloride …

New series of pyrazole-based heterocyclic systems were synthesized using 2-
cyanopropenoyl isothiocyanate derivative as an intermediate through treating with some …

A new series of quinazoline derivatives bearing a 1, 3-diphenylpyrazole core was
synthesized starting from 3-(1, 3-diphenyl-1 H-pyrazol-4-yl)-2-(4-oxo-4 H-benzo [d][1, 3] …

Abstract A 2-cyano-N'-((2-oxo-1, 2-dihydroquinolin-3-yl) methylene) ethanohydrazide (3)
was synthesized in 87% yield via condensation of 3-formyl-2-oxoquinoline (1) with 2 …

Ultrasonic and solvent-free condensation of 2-aminobenzoic acid with 4-
bromoisobenzofuran-1, 3-dione to construct the 4′-bromo-3′ H-spiro [benzo [d][1, 3] …

In this review, we reported the synthetic method used to construct thirteen derivatives of 3-
aryl/heteryl-2-cyanoacryloyl chloride followed by a focused survey on their spectral data and …

The broad spectrum of biological activity of pyrazole derivatives coupled with our interest in
the chemistry of nitrogen heterocycles led us to synthesize a bis-benzoxazinone derivative …

ABSTRACT The reactions of 2-cyano-3-pyrazolylpropenoyl isothiocyanate derivative 2 with
some mono-and bidentate nucleophiles namely, dodecan-1-amine, 6-aminothiouracil …