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
A Highly Selective and Practical Method for Enantiopure Sulfoxides Utilizing Activated and Functionally Differentiated N-Sulfonyl-1,2,3-oxathiazolidine-2-oxide Derivatives
作者:Zhengxu Han、Dhileepkumar Krishnamurthy、Paul Grover、H. Scott Wilkinson、Q. Kevin Fang、Xiping Su、Zhi-Hui Lu、Daniel Magiera、Chris H. Senanayake
DOI:10.1002/anie.200250644
日期:2003.5.9
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