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

2-(Het)arylhydrazono-1,3-dicarbonyl compounds in organic synthesis - IOPscience This site
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Publisher Summary The interesting biological activities reported for pyrazolopyrimidines
have stimulated chemists to develop the chemistry of this class of compounds. This chapter …

Publisher Summary Hydrazonoyl halides have emerged as an important class of
intermediates, particularly for the synthesis of heterocyclic compounds. This chapter …

Synthesis and tautomerism of aryl- and hetaryl-azo derivatives of bi- and tri-heterocycles -
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In this study, 5-amino-4-hetarylazo-3-methyl-1H-pyrazoles were diazotised and coupled with
malononitrile and ethyl cyanoacetate to give pyrazolylazo malononitriles and ethyl …

Chemistry of Pyrazole-3(5)-Diazonium Salts (Review)* | SpringerLink Skip to main content
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Abstract Cyanothioacetamide reacts with pyrazole-3 (5)-diazonium chlorides to afford
pyrazolo [5, 1-c][1, 2, 4] triazine-3-carbothioamides 5. The latter can be oxidized with H 2 O 2 …

Publisher Summary Compounds containing the 1, 2, 4-triazine moieties are largely used as
pharmaceuticals, dyes, pesticides, and herbicides. Great interest is directed to the synthesis …

Publisher Summary This chapter discusses the chemistry of pyrazoles condensed to
heteroaromatic five-and six-membered ring structures, and the synthesis of pyrazoloazines …