Asymmetric Synthesis of Indolines through Intramolecular Shifting of Aromatic Sulfinyl Groups. Role of the π,π-Stacking Interactions in these Unusual S<sub>N</sub>Ar Processes
作者:José L. García Ruano、Alejandro Parra、Vanesa Marcos、Carlos del Pozo、Silvia Catalán、Silvia Monteagudo、Santos Fustero、Ana Poveda
DOI:10.1021/ja8096527
日期:2009.7.8
Cyclization of N-aryl substituted 1-aryl-2[2-p-tolylsulfinyl]phenyl propylamines under LDA, LHMDS, or KHMDS provides a new approach for synthesizing optically pure 2,3-disubstituted indolines. Both the scope and the limitations of this method have been investigated. The pi,pi-stacking interactions are crucial for these unprecedented intramolecular S(N)Ar processes, in which a sulfinyl group located