Nucleophilic addition to dimethylvinylphosphine sulfide as a convenient route to polydentate ligands containing the 2-dimethylphosphinoethyl unit

The synthesis of a range of new phosphine-containing polydentate ligands has been achieved by addition of sulfur and nitrogen nucleophiles to dimethylvinylphosphine sulfide, followed by reduction of the resulting phosphine sulfides with lithium aluminium hydride.

Graphical Abstract