Lead compounds sulfur-coordinated products

The turnover rates (Table 3) are lower than those obtained with 1 in the metathesis of 2-pentene or ethyl oleate, suggesting a reversible coordination of the sulfur compound to the metallocarbene leading to a partial deactivation of the catalyst. Nevertheless, the reaction is highly selective (only the expected metathesis products are detected) and the conversion of 4 can reach a high value when an excess of the co-reactant olefin is used. 

Analogous G-S bond activation of benzothiophene and dibenzothiophene, bonded to Mn(GO)3, leads to metalla-cyclic compounds with Pt-G and Pt-S bonds 430 and 431. " The reaction of methylbenzothiophene occurs regioselectively to yield a single product, which undergoes slow elimination of a GO ligand and coordination of sulfur to the Mn center. 

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