SYNTHESIS AND ANTIFUNGAL ACTIVITY OF 3-SUBSTITUTED 5-FERROCENYL-1H-PYRAZOLES

Abstract

A convenient method for the selective synthesis of functionalized 3-substituted 5-ferrocenyl-1H-pyrazoles has been developed. Condensation reaction of α,β-unsaturated ferrocenyl ketones and tosylhydrazine in the presence of catalytic amount of iron(III) phthalocyanine chloride allowed to obtain nine new 3-substituted 5-ferrocenyl-1H-pyrazoles. The synthesized products were evaluated for their antifungal activity against Gibberella nicotiancola, Fusarium oxysporum f. sp. niveum, and Gibberella saubinetii. Most of the compounds exhibited excellent antifungal activity.