Aminomethylation of Michael Acceptors: Complementary Radical and Polar Approaches Mediated by Dialkylzincs
作者:Julien Maury、Dominique Mouysset、Laurence Feray、Sylvain R. A. Marque、Didier Siri、Michèle P. Bertrand
DOI:10.1002/chem.201102366
日期:2012.3.12
Phtalimidomethyl iodide and substituted maleimidomethyl iodide were used as radical precursors in dialkylzinc‐mediated radical addition to diethyl fumarate. The reactions led stereoselectively to functionalized pyrrolizidines. The radical mechanism was supported by spin‐trapping experiments and rationalized by theoretical calculations. Radical additions, on the one hand, and carbozincation followed