Synthesis and reaction of β-organyltelluro vinylphosphonates and vinyl sulfones

Reactions of organyl tellurols generated in situ from ditellurides and alkynes bearing electron-stabilizing groups such as the phosphonyl and sulfonyl groups gave the β-organyltelluro vinylphosphonates or vinyl sulfones in high yield, which are followed by transmetallation by organometallic reagents.