Reactions of bis(thiophosphoryl) disulfanes and bis(thiophosphinyl)disulfanes with metal species: an alternative, convenient route to metal complex and organometallic dithiophosphates and dithioposphinates

摘要

The reactions of bis(thiophosphoryl) disulfanes, and bis(thiophosphinyl) disulfanes, X_2P(S)SSP(S)X_2(X=R, OR; R=alkyl, aryl) with metals and low valent state metal compounds re reviewed. Four types of reactions of the disulfanes are possible: (a) adduct formation with ring closure through chelation (rare); (b) metal insertion, involving homolytic clevage of the S-S bound and oxidative addition of the metal species (typical for active metals and low valent metal species); (c) redistribution between M-M and S-S bounds, involving homolytic cleavage of both S-S and M-M bonds and oxidation of the metal with the formation of M-S Bonds; (d) addition of the (S)PS-SP(S) moieties to metal-metal multiple bonds.