Synthesis of bis(trithio) phosphines by oxidative transfer of phosphorus(I)

摘要

The synthesis of novel bis(trithio) phosphines is achieved by oxidative addition of tetrathiocins to the phosphorus( I) reagent [PIdppe][Br] in good yields under ambient conditions. These bis(trithio) phosphines and the related intermediate diphosphine species are characterized by X-ray diffraction and multinuclear NMR and a mechanism is proposed for the formation of these molecules. In contrast, the related reaction with diphenyldisulfide produces a mononuclear tris(phenylthio) phosphine.