Synthesis of Optically Pure 1,2-Diaryl- and 1,2-Alkylaryl-1,2-amino Sulfides
摘要:
The reactions of the lithium (S)-alpha-(methylthio)-2-(p-toluenesulfinyl)benzyl carbanion with (S)-N-p-tolylsulfinyl aldimines evolve in a completely stereoselective manner providing a one-step synthesis of enantiomerically pure anti-1,2-disubstituted 1,2-amino sulfide derivatives.
Synthesis of Optically Pure 1,2-Diaryl- and 1,2-Alkylaryl-1,2-amino Sulfides
摘要:
The reactions of the lithium (S)-alpha-(methylthio)-2-(p-toluenesulfinyl)benzyl carbanion with (S)-N-p-tolylsulfinyl aldimines evolve in a completely stereoselective manner providing a one-step synthesis of enantiomerically pure anti-1,2-disubstituted 1,2-amino sulfide derivatives.
Optically pure trans-2,3-disubstituted N-sulfinyl aziridines. Regio- and stereoselective opening mediated by the sulfinyl group
作者:Yolanda Arroyo、Ángela Meana、J. Félix Rodríguez、Mercedes Santos、M. Ascensión Sanz-Tejedor、José L. García-Ruano
DOI:10.1016/j.tet.2006.06.072
日期:2006.9
A newentry to optically pure trans-2,3-disubstituted N-sulfinyl aziridines starting from 1,2-aminosulfides, involving formation of a sulfonium salt intermediate followed by intramolecular nucleophilic attack by the sulfinamide nitrogen atom, is reported. The regio- and stereoselective opening of the aziridine ring can be achieved by anchimeric assistance of the sulfinyl group.