Environment-friendly Synthesis of Bioactive Pyrazoles

Pyrazoles are compounds of synthetic origin, and constitute a group of nitrogen heterocyclic compounds that have shown several biological activities. Their transformations into other biologically active molecules have been exploited since the early 1960s. This review describes the work on the environment-friendly synthesis of bioactive pyrazoles. The review covers mainly the data published over the last five years (2007-2012).