Muthusamy, SengodagounderBoopathy, Gnanaprakasam2012-01-132012-01-132005Tetrahedron 61 (2005) 1309–1315http://hdl.handle.net/1968424/523enCarbonyl ylides; Diazo ketonesIonic liquids as a convenient recyclable medium for the generation of transient carbonyl ylides syntheses of oxa and dioxa-bridged polycyclic systemsArticle