one-pot three-component process for the synthesis of substituted pyrano[2,3-c]pyrazoles catalyzed by nanostructured fsm-16-so3h

A three-component process for the one-pot synthesis of 6-amino-4-aryl-5-cyano-3-methyl-1-phenyl-1,4-dihydropyrano[2,3-c]pyrazoles by the reaction of aldehydes, 3-methyl-1-phenyl-1h-pyrazol-5(4h)-one, and malononitrile in the presence of fsm-16-so3h as an efficient mesoporous catalyst. the fsm-16-so3h was prepared and characterized by sem, xrd, bet, and ft-ir techniques. the advantages of the presented method are high yields, short reaction times, easy purification of products, easy work-up, and reusability of the catalyst.