Nitriles in Heterocyclic Synthesis:Synthesis of New Ethyl-Substituted Polyfunctional Hetero-Aromatics.-Propylidenemalononitrile, prepared in situ from the corresponding aldehyde (I) and malononitrile (II), reacts with compounds bearing active methylene groups, such as (V) and (VIII), or active hydrogen functions, e.g. (X), to afford novel heterocyclic derivatives. -(ELGHANDOUR, A. H. H.; IBRAHIM, M. K. A.; ALI, F. M. M.; ELSHIKH, S. M. M.; Indian J. Chem., Sect. B: Org. Chem.
Utility of Hydrazidoyl Halides in HeterocyclicChemistry: Synthesis of Pyrazol-5-yl-1,2,4-triazole, Pyrazol-5-yl-thiadiazole and Pyrazol-5yl-triazolo[4,5-b]triazine Derivatives. -With a view to their potential antibacterial activity the title compounds, e.g. (III), (V), (VII) and (IX), are prepared. -(IBRAHIM, M. K. A.; ELGHANDOUR, A. H. H.; ELSHIKH, S. M. M.; MISHAEL, S. A.; Indian J.
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