Sulfamic Acid (H<sub>2</sub>NSO<sub>3</sub>H): A Low-Cost, Mild, and Efficient Catalyst for the Synthesis of Substituted N-Phenylpyrazoles Under Solvent-Free Conditions
作者:Mohan R. Shetty、Shriniwas D. Samant
DOI:10.1080/00397911.2010.540365
日期:2012.5.15
Abstract N-Phenylpyrazoles are synthesized by condensing phenylhydrazine and 1,3-diketones in the presence of a catalytic amount of sulfamicacid, a mild and an efficient solid acidcatalyst, undersolvent-freeconditions. This condensation proceeds smoothly in shorter reaction time. GRAPHICAL ABSTRACT