Synthesis of functionalized tri- and tetrasubstituted vinylic tellurides from enolphosphates through vinylic substitution by lithium butyltellurolate

Article abstract of DOI:10.1016/S0040-4039(99)01633-0

Vinylic tellurides are precursors of important highly reactive vinylic organometallics (e.g. vinyl Li and Cu species). Herein we report that tri- and tetrasubstituted functionalized vinylic tellurides can be prepared from enolphosphates through a vinylic substitution by lithium butyltellurolate. Starting from mixtures of Z- and E- enolphosphates, only the Z-vinylic telluride is formed.