1,3-Dipolar cycloaddition of nitrones with phenylvinyl sulfone. An experimental and theoretical study
摘要:
The addition of three nitrones to phenylvinylsulfone, 1, has been studied. The stereochemistry previously established by two-dimensional NMR techniques was confirmed by X-ray crystal structure determination. Theoretical studies made us propose that this reaction is not purely regioselective, but by controlling the substituents of nitrone and temperature the regioselectivity increases. (C) 2012 Elsevier Ltd. All rights reserved.