Tungsten(0) η2-Thiophene Complexes: Dearomatization of Thiophene and Its Facile Oxidation, Protonation, and Hydrogenation
Organometallics2005Vol. 24(8), pp. 1876–1885
Citations Over TimeTop 13% of 2005 papers
Abstract
Complexes of the form TpW(NO)(PMe3)(η2-thiophene) have been synthesized in 31−40% yield by reduction of TpW(NO)(PMe3)(Br) in the presence of the thiophene ligand. The dynamics of protonation and the subsequent deprotonation for the corresponding 2H-thiophenium complexes have been investigated. Hydrogenation of the uncoordinated double bond was accomplished, and sulfur−carbon, sulfur−oxygen, and carbon−carbon bond-forming reactions were explored with these complexes.
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