Abstract Mass spectrometry and quantum chemical studies of the reaction of divinyl telluride with diphenylphosphine sulfide have been carried out. Reaction proceeds under radical initiation (AIBN, 63–68 С, 2.5 h, THF, reactants molar ratio= 1: 1) to afford the anti- Markovnikov monoadduct 1 and diadduct 2 in 67 and 23% yield, respectively. The former easily decomposes to give vinyldiphenylphosphine sulfide 3 (in 63% yield), ethylene and ...