A fascinating decade for the synthesis of 1,2-azoles

Abstract

Abstract 1,2-Azoles comprising pyrazoles, isoxazoles, and isothiazoles have occupied a distinctive position in the design and synthesis of novel biologically active compounds that exert remarkable pharmaceutical activities as medicines and agrochemicals. As a consequence, there has been an increasing interest among synthetic organic/medicinal chemists in the development of methodologies for the rapid access to these heterocycles. In this review, we have summarized the most significant advances in the construction of functionalized pyrazoles, isoxazoles, and isothiazoles reported in the literature up to 2012.