Browsing by Author "Raghvendra Singh Raghuvanshi"
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PublicationArticle A mild protocol for the synthesis of 2-arylbenzoxazoles from phenolic Schiff bases promoted by superoxide(Scientific Publishers, 2012) Raghvendra Singh Raghuvanshi; Krishna Nand SinghAn easy and efficient oxidative cyclization of 5chiff bases, derived from the condensation of a-aminophenol with aromatic aldehydes, to 2-arylbenzoxazoles is described using in situ generated tetraethylaininonium superoxide in aprotic solvent at room temperature.PublicationArticle Tetraethylammonium superoxide induced Michael addition of active methylene compounds to chalcones(Scientific Publishers, 2009) Raghvendra Singh Raghuvanshi; Krishna Nand SinghMichael addition of active methylene compounds to chalcones using in-situ generated tetraethylammonium superoxide results in the formation of Michael adducts in 69-84% yield under mild reaction conditions, at room temperature.