Enantioselective synthesis of thiols by thione-thiol rearrangement catalyzed by optically active pyridine N-oxides
作者:Maria B. Diana、Mauro Marchetti、Giovanni Melloni
DOI:10.1016/0957-4166(95)00143-d
日期:1995.5
Enantiomerically enriched thiols were prepared by rearrangement under mild conditions of racemic carbonodithioic O,S-dialkyl esters catalyzed by optically active pyridine N-oxides, followed by reaction with 2-aminoethanol of the carbonodithioic S,S-dialkyl esters thus formed. Enantioselectivities up to 37.7% was obtained.