http://nopr.niscair.res.in/handle/123456789/13817 Search the Channel search http://nopr.niscair.res.in/simple-search http://nopr.niscair.res.in/handle/123456789/13836 Title: Sleek synthesis of 2,3-dihydrobenzofurans <br/> <br/>Authors: Kumar, T S S P N S Sanath; Prasant, A; Krupadanam, G L David; Kumar, K Akshaya <br/> <br/>Abstract: 2-Benzoyl-3-phenacyl-2,3-dihydrobenzofurans are synthesized by the reaction between 2-hydroxychalcones and 2-bromoaceto­phenones with potassium carbonate in boiling acetone in good yield. <br/> <br/>Page(s): 658-662 Thu, 29 Mar 2012 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/13835 Title: Microwave accelerated synthesis of 2-aminothiophenes in ionic liquid <i style="">via</i> three component Gewald reaction <br/> <br/>Authors: Chavan, Sunil S; Pedgaonkar, Yogesh Y; Jadhav, Ananda J; Degani, Mariam S <br/> <br/>Abstract: Microwave accelerated synthesis of substituted 2-amino­thiophenes by a three-component Gewald reaction using a basic ionic liquid, 1,1,3,3-tetramethylguanidine lactate [TMG] [Lac] as solvent as well as catalyst has been developed. The products are obtained in good to high yields and the ionic liquid is reusable over several cycles without significant loss in catalytic activity. <br/> <br/>Page(s): 653-657 Thu, 29 Mar 2012 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/13834 Title: A mild protocol for the synthesis of 2-arylbenzoxazoles from phenolic Schiff bases promoted by superoxide <br/> <br/>Authors: Raghuvanshi, Raghvendra Singh; Singh, Krishna Nand <br/> <br/>Abstract: An easy and efficient oxidative cyclization of Schiff bases, derived from the condensation of <i style="">o</i>-aminophenol with aromatic aldehydes, to 2-arylbenzoxazoles is described using <i style="">in situ</i> generated tetraethylammonium superoxide in aprotic solvent at room temperature. <br/> <br/>Page(s): 650-652 Thu, 29 Mar 2012 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/13833 Title: Effects of phenols, amines and alcohols on the reactivity of triphenyltin hydride towards alkyl cinnamates <br/> <br/>Authors: Kalita, Pankaj; Choudhury, Diganta; Deka, Dibakar Chandra <br/> <br/>Abstract: The reaction of alkyl cinnamates with triphenyltin hydride under radical environment in the presence of different phenols, amines and alcohols has been studied. In the presence of phenols both reduced product and hydrostannated products are obtained, and the selectivity between the two products depends on the reactivity of both the phenol and the substrate, whereas in presence of alcohols and amines, hydrostannated product is always the major in a mixture of both reduced and hydrostannated products. <br/> <br/>Page(s): 646-649 Thu, 29 Mar 2012 22:58:59 GMT