A “one-pot” method for the synthesis of N-(1,3-diphenyl-1H-pyrazol-5-yl)amides was developed by cyclization of benzoylacetonitrile (1) and phenylhydrazine in neat condition followed by acylation. The corresponding N-(1,3-diphenyl-1H-pyrazol-5-yl)amides were provided in good to excellent yields (70–90%). The significant advantages of the new synthetic method are excellent yields and simple work-up procedure without isolation and purification of intermediary 5-amino-1,3-diphenyl pyrazol (2). J. Heterocyclic Chem., (2010).
