?SYNTHESIS OF SOME HYDRAZONE ANDPYRAZOLINE DERIVATIVES
Keywords:
Hydrazones, Pyrazolines, Preparation.Abstract
Condensation of chalcones (I) with aroyl-and arylhydrazines afforded the corresponding hydrazones (2 and 3),
cyclization of the hydrazones (3) with HCI gave the pyrazoline derivatives (4) which on oxidation with bromine water
yielded the corresponding pyrazoles (5). Addition of 5-p-bromophenyl-3-methyl-l-p-sulphamylphcnylpyrazole (5c)
to allylisothiocyanate afforded the thiourea derivative (6) which was readily cyclized with ethyl bromoacctatc to the
corresponding oxothiazolidine (7).
Published
1995-06-19
How to Cite
FAIDALLAH, H., MOKHTAR, H., NASSAR, A., & AHMED, M. (1995). ?SYNTHESIS OF SOME HYDRAZONE ANDPYRAZOLINE DERIVATIVES. Biological Sciences - PJSIR, 38(5-6), 179–181. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/2468
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