Synthesis of internal acetylenes from vinylic tellurides

Article abstract of DOI:10.1016/S0040-4039(98)01085-5

Vinylic tellurides were prepared by carbotelluration of acetylenes under light. The subsequent oxidation with sodium hypochlorite followed by pyrolysis gave internal acetylenes in good yields. Combination of these reactions provides a useful method for introduction of alkyl groups to terminal acetylenes.