The development of new sources renewable energy fuels like hydrogen remains challenging considering the nowadays society needs on a day-to-day basis. In this context, hybrid nanostructures conformed by TiO 2 nanoparticles sensitized with bundles rod-like Sb S 3 (stibnite) surface reduced graphene oxide (TiO /Sb /RGO), can pave way in direction, as offering heterostructures that be employed acti...

A mild and efficient one-pot three-component and environmentally benign approach for the synthesis of a wide range of hydantoin annulated derivatives has been described. A multi-component reaction between a carbonyl compounds (ketone or aldehyde), potassium cyanide and ammonium carbonate (as cyanating agent and amine source, respectively leads to the formation of hydantoins. The proposed optimi...

An efficient and sustainable method was developed for electrocatalytic multicomponent synthesis of  spirooxindole-chromene  derivatives via  a  green  one-pot,  three  component  condensations  of cyclic-1,3-diones,   malononitrile  and   isatins   inside  an  undivided  cell  where  potassium  bromide was applied as electrolyte in ethanol/DMSO (95/5 v/v) media, and a practical Fe-Mn-O composit...

A series of 2-arylquinazolines have been synthesized in moderate to excellent yields by one-pot tandem reaction of (2-aminophenyl)methanols, aldehydes and ceric ammonium nitrate (CAN). The utility of this transformation was demonstrated by its compatibility with a wide range of functional groups. Thus, the method represents a simple and practical procedure to access 2-arylquinazolines.