Total Stereochemical Control in the Addition of Thiols to <i>p</i>-Toluenesulfonylacetylene. Synthesis of <i>Z</i>- and <i>E-</i>2-Sulfanylvinylsulfonyl Derivatives
作者:Rocío Medel、María I. Monterde、Joaquín Plumet、Jenny K. Rojas
DOI:10.1021/jo0402576
日期:2005.1.1
0 °C or rt without the use of any catalytic reagent to give good yields of Z-2-sulfanylvinylsulfonyl derivatives with total diastereoselectivity. On the other hand, in the presence of 1.1 equiv of NaH in THF, the same reaction affords the corresponding E-diastereomer also with total diastereoselectivity.