5726-14-7Relevant academic research and scientific papers
Fast and reversible migrations of N,S-centered groups around the perimeter of cyclopropene and cycloheptatriene rings
Minkin, V. I.,Mikhailov, I. E.,Dushenko, G. A.,Kompan, O. E.,Zschunke, A.
, p. 884 - 894 (2007/10/03)
The kinetics and mechanism of circumambulatory rearrangements of N-centered (NCS) and S-centered (SPh, SC3Ph3, SC(OEt)=S) groups in corresponding derivatives of 1,2,3-triphenylcyclopropene and cycloheptatriene were studied by dynamic 1H and 13C NMR spectr
Organosulphur-Transition-metal Chemistry. Part 6. Reactions of Cyclo-octatetraenyl and Cycloheptatrienyl Thioethers with Metal Carbonyls
Carleton, Susan C.,Kennedy, Fiona G.,Knox, Selby A. R.
, p. 2230 - 2234 (2007/10/02)
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 C7H7SBut-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 But) 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-But bond.
