A new and efficient method has been developed for the synthesis of 4-aryl-7-benzylidene-1,3,4,5,6,7-hexahydro-2H-cyclopenta[d]pyrimidin-2-ones through Biginelli-like reaction of cyclopentanone, with urea/thiourea and aromatic aldehyde employing p-dodecylbenzenesulfonic acid (DBSA) as a recyclable catalyst under solvent-free condition. The recovered catalyst was recycled for further runs. The pr...

2-Alkyl cycloketones are essential chemicals and intermediates for synthetic perfumes pesticides, which conventionally produced by multistep process including aldol condensation, separation hydrogenation. In present work, a batch one-pot cascade approach using aldehydes as the raw materials, bifunctional Pd/ZrO2 catalyst was developed synthesis of 2-alkyl cycloketones, e.g., cyclohexanone cyclo...

Hydrotalcites (HTCs) are promising solid base catalysts to produce advanced biofuels by aldol condensation. Their main potential lies in the tunability of their acid-base properties varying composition. However, relationship between composition hydrotalcites, basicity, and catalytic performance has not yet been fully revealed. Here, we investigate systematically preparation HTCs with general fo...

Isatin is a heterocyclic nitrogen compound that has attracted much interest in recent years due to its diverse biological and pharmacological activities. It can be used many medical applications, such as antidiabetic, antibiotic, anticancer agents. The isatin molecule also prepared from different substrates by various methods, the methods of Sandmeyer, Stolle, Gassman, Meanwell Hewawasam others...

a new and efficient method has been developed for the synthesis of 4-aryl-7-benzylidene-1,3,4,5,6,7-hexahydro-2h-cyclopenta[d]pyrimidin-2-ones through biginelli-like reaction of cyclopentanone, with urea/thiourea and aromatic aldehyde employing p-dodecylbenzenesulfonic acid (dbsa) as a recyclable catalyst under solvent-free condition. the recovered catalyst was recycled for further runs. the pr...