A General and Expeditious One-Pot Synthesis of Sulfoxides in High Optical Purity from Norephedrine-Derived Sulfamidites
作者:José L. García Ruano、Carlos Alemparte、M. Teresa Aranda、María M. Zarzuelo
DOI:10.1021/ol027232i
日期:2003.1.1
A general and simple procedure for preparing any kind of enantiomerically enriched sulfoxide starting from norephedrine-derived N-benzyloxycarbonylsulfamidite 3a is reported. After one-pot reaction of 3a with RMgX, HBF(4), and R'MgX, a variety of sulfoxides 6 are obtained in ee usually higher than 93% and isolated yields ranging between 50 and 78%. The obtained configuration is tunable by simply electing
Highly Stereoselective Route to Dialkyl Sulfoxides Based upon the Sequential Displacement of Oxygen and Carbon Leaving Groups by Grignard Reagents on Sulfinyl Compounds
作者:Maria Annunziata M. Capozzi、Cosimo Cardellicchio、Francesco Naso、Giulia Spina、Paolo Tortorella