Recycling the <i>tert</i>-Butanesulfinyl Group in the Synthesis of Amines Using <i>tert</i>-Butanesulfinamide
作者:Masakazu Wakayama、Jonathan A. Ellman
DOI:10.1021/jo9001883
日期:2009.4.3
analytically pure tert-butanesulfinamide in 97% yield. Alternatively, the tert-butanesulfinyl chloride solution can be treated with ethanol and catalytic quinidine as a sulfinyl transfer catalyst to provide a cyclopentyl methyl ether solution of ethyl tert-butanesulfinate with 88% ee. Addition of NaNH2 in ammonia followed by simple trituration of the product with octane provides tert-butanesulfinamide with 99%