CARBON-SULFUR BOND-CLEAVAGE BY COBALT - REACTION OF CP-ASTERISK-CO(C2H4)2 WITH DIBENZOTHIOPHENE

The thermal reaction of CpCo(C2H4)2 with thiophene yields the C-S ins ertion product [CPCo]2(mu-eta2,eta3-C4H4S). Reaction with dibenzothio phene produces the analogous dinuclear C-S insertion adduct [CPCo]2(m u-eta2,eta3-C12H8S) the crystal structure of which was determined. Rea ction of the thiophene insertion adduct with H2S gives a new butadiene dithiolate compound in which sulfur has inserted into the metal-carbon bond, [CPCo]2(mu-eta2,eta2-S2C4H4).