Examples:

Ph₂SeF₂, PhSeF₃, PhTeF₅,

Main co-workers:

Literature:

1. Lermontov S. A., Zavorin S. I., Bakhtin I. V., Pushin A. N., Zefirov N. S., Stang P. J., Fluorination of olefins with PhSeF₃, PhSeF₅ and PhTeF₅. Journal of Fluorine Chemistry, 1998, 87, (1), 75-83.
2. Lermontov S. A., Shkavrov S. V., Lermontov A. S., Zavelsky V. O., Zefirov N. S., Oxidative fluorination of some organoantimony and organotellurium compounds by 2-hydroperfluoropropyl azide. Journal of Fluorine Chemistry, 1999, 94, (1), 43-45.
3. Lermontov S. A., Rakov I. M., Zefirov N. S., Stang P. J., Triphenylbismuth difluoride - a novel reagent for the oxidative fluorination of P(III), Se(II), and Sb(III) compounds. Phosphorus, Sulfur and Silicon and the Related Elements, 1994, 92, (1-4), 225-229.
4. Kutateladze A. G., Kice J. L., Kutateladze T. G., Zefirov N. S., A one-pot trifunctionalization of olefins with benzeneseleninic and trifluoroacetic anhydrides using a commonly undesirable side reaction as a key step. Journal of Organic Chemistry, 1993, 58, (5), 995-996.