Stereoespecific syntheses of 2,3-dimethyl-1,4-oxathian S-oxides
作者:J.C. Carretero、J.L. García Ruano、J.H. Rodríguez
DOI:10.1016/s0040-4039(01)81356-3
日期:1984.1
The stereoespecific syntheses of cis- and trans-2,3-dimethyl-1,4-oxathian, their diastereomeric S-oxides and their S-dioxide derivatives are reported. The key step in the synthetic pathways is the cyclization ofa 2-hydroxyalkyl vinylsulphoxide, by intramolecular conjugated addition with retention of configuration in the C and S chiral centers.
Synthesis of substituted 1,4-oxathianes. Mechanistic details of diethoxytriphenylphosphorane and triphenylphosphine/tetrachloromethane-promoted cyclodehydrations and carbon-13 NMR spectroscopy
作者:William T. Murray、Jeffery W. Kelly、Slayton A. Evans