Abstract Recently reported syntheses of 3 (5)-aminopyrazoles, 4-aminopyrazoles, and 1-
aminopyrazoles as well as of diaminopyrazoles and their general pattern of reactivity …

The pyrazolopyrazine ring system is a very interesting class of heterocyclic compounds that
were considered as important scaffolds of many efficacious biologically active agents that …

As a continuation of our research on developing anticancer agents and based on the proven
proprieties of thieno [2, 3‐b] pyridines as anticancer, we have designed to synthesize novel …

This review summarizes the reactions of nitrilimines, genearted in situ by base-catalyzed
dehydrohalogenation of the respective hydrazonoyl halides, with aminoazoles, aminoazines …

Synthesis and tautomerism of aryl- and hetaryl-azo derivatives of bi- and tri-heterocycles -
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Publisher Summary This chapter discusses the chemistry of pyrazoles condensed to
heteroaromatic five-and six-membered ring structures, and the synthesis of pyrazoloazines …

Three series of 3, 7-bis (arylazo)-6-methyl-2-phenyl-1H-imidazo-[1, 2-b] pyrazoles were
prepared starting from N-aryl 2-oxo-2-phenylethanehydrazonoyl bromides and 5-amino-4 …

This book serves as a supplement to The Pyrazines, Volume 41 of the Chemistry of
Heterocyclic Compounds series. It covers the literature published between 1979 and 2000 …

A literature survey revealed that a great deal of interest had been focused on the synthesis
of functionalized heterocyclic compounds due to their wide range of biological activities such …

This review presents a survey of literature reports dealing with both site and peri-selectivities
in cycloaddition reactions of nitrilimines with multifunctionalized dipolarophiles. The …