Synthetic applications of dimethyl(methylthio)sulfonium fluoroborate: Sulfenyletherification and sulfenyllactonization
作者:Gerard J. O'Malley、Michael P. Cava
DOI:10.1016/s0040-4039(00)95041-x
日期:1985.1
A new method for the formation of cyclic ethers and lactones is described. Dimethyl(methylthio)sulfonium fluoroborate (DMTSF) initiates formation of an episulfonium ion, which is followed by internalnucleophilic displacement to give the products in good yields.