Organosulphur-Transition-metal Chemistry. Part 6. Reactions of Cyclo-octatetraenyl and Cycloheptatrienyl Thioethers with Metal Carbonyls

Article abstract of DOI:10.1039/DT9810002230

The compound C8H7SMe has been prepared by treating cyclo-octatetraenyl-lithium with MeSCl.Reaction with provides tricarbonyliron complexes and trans-; the former appears to undergo the characteristic oscillatory fluxional motion of such monosubstituted cyclo-octaterraene comlexes, but the latter is non-fluxional.Sulphur-C8H7 bond cleavage is also evident, in the formation of and , and of bicyclo-octatetraenyl when C8H7SMe and react.Similarly S-C7H7 bond cleavage is predominant in reactions of known C7H7SR-7 (R=Me or Ph) and new C7H7SBu^t-7 (from and Nat>) with a variety of metal carbonyls.Only is obtained with , and t)2(η-C5H5)2> with , but from complexes, t)(μ3-C7H7))> and 7-C7H7))> (R=Me or Bu^t) are isolated, containing the components of C7H7SR as separate ligands.Fluxional rotation of the C7H7 ring in the diruthenium comlexes is slowed at -100 deg C, shown by n.m.r. spectra which also restricted rotation about the S-Bu^t bond.

Full text of DOI:10.1039/DT9810002230

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