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Paper | Special issue | Vol 84, No. 2, 2012, pp.913-928
Published online, 10th August, 2011
DOI: 10.3987/COM-11-S(P)72
C-[o-(p-Tolyl)sulfinyl]phenylnitrones. Synthesis and Reactivity in [3+2] Dipolar Cycloadditions

José Luis García Ruano,* Alberto Fraile,* Alberto Núñez, M. Rosario Martín, and Inés Alonso

*Department of Organic Chemistry, Faculty of Sciences, Madrid Autonomous University, Madrid 28049, Spain

Abstract

The synthesis of the title compounds and the results obtained in their reactions with different dipolarophiles is presented. Alkylidene malonates afford the best conversions and stereoselectivities, providing enantiomerically pure isoxazolidines easily transformed into interesting tricyclic structures with t-BuLi.