Diphenyl ditelluride 2 has been found to add efficiently to various acetylenes 1 upon irradiation with visible light (>400 nm), providing vic-bis(phenyltelluro)alkenes 3 in good yields.
A. Ogawa, K. Yokoyama, H. Yokoyama, R. Obayashi, N. Kambe and N. Sonoda, J. Chem. Soc., Chem. Commun., 1991, 1748 DOI: 10.1039/C39910001748
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