... (b) Aiello, E.; Dattolo, G.; Cirrincione, G.; Almerico, AM 8th Intemational Congress of Heterocyclic Chemistry: Graz, Austria ... Page 3. 1010 J. Org. ... The mixture was stirred for 2-3 h at 0 "C and the organic layer was separated and dried by passing it through a short column containing ...