“…The efficiency of alum has been reported for the synthesis of 1,4-dihydropyridines [5], cis-isoquinolic acids [6], mono-and disubstituted 2,3-dihydroquinazolin-4(1H)-ones [7], dihydropyrimidine using the Biginelli reaction [8], coumarins [9], 5-arylidene-2,4-thiazolidinedione [10], dibenzoxanthenes [7], 1,5-benzodiazepines [11], trisubstitutedimidazoles [5] and 4-substituted coumarins using the Pechmann reaction [9]. Synthesis of nitrogen-containing heterocyclic compounds has great value in natural and synthetic organic chemistry due to their therapeutic and pharmacological properties [2]. Compounds with pyrazolemoieties as nitrogen-containing heterocyclic systems have received attention owing to their diverse biological activities.…”