Desulfurisation of trithiocarbonates at a dimolybdenum centre: an unexpected insertion into a co-ordinated alkyne

摘要

On reaction with the dimolybdenum alkyne complex [Mo-2-{mu-C-2(CO2Me)(2)}(CO)(4)(eta-C5H5)(2)], dialkyl trithiocarbonates (RS)(2)C=S were dismantled into sulfido (mu-S), thiolate (mu-SR) and CSR fragments; remarkably the last of these inserts into the middle of the alkyne to produce a dimetalla-allyl species with a mu-C(CO2Me)C(SR)C(CO2Me) ligand. [References: 9]