Synthesis of chiral sulfines by oxidation of dithio esters
作者:Johannes B. van der Linden、Johan L. Timmermans、Binne Zwanenburg
DOI:10.1002/recl.19951140304
日期:——
The synthesis of sulfines (thione oxides) (2, 10 and 17) derived from three chiraldithioesters (1, 8 and 16) bearing a hydrogen at the α-carbon atom is described. The sulfine bearing an amido group at C-α (2), does not racemize and proved to be stable over a long period. When C-α in the sulfine (10) bears an acetoxy group the optical activity remained unchanged for a period of two months; after longer