Fast Pd- and Pd/Cu-Catalyzed Direct C–H Arylation of Cyclic Nitrones. Application to the Synthesis of Enantiopure Quaternary α-Amino Esters
作者:Emilien Demory、Daniel Farran、Benoit Baptiste、Pierre Y. Chavant、Véronique Blandin
DOI:10.1021/jo301114k
日期:2012.9.21
very fast, clean, and high-yielding palladium-catalyzedcoupling of a large array of aryl, thienyl, and pyridyl halides with cyclic nitrones, including DMPO. The study of the reaction conditions, scope, and mechanism is presented. Applied to the chiral nitrone MiPNO, this transformation provides a straightforward access to enantiopure α-methyl α-arylglycine esters.