Synthesis, characterization, and structure of cyclopenta[c]thiophenes and their manganese complexes

Chad A. Snyder, John P. Selegue, Nathan C. Tice, Chad E. Wallace, Mark T. Blankenbuehler, Sean Parkin, Keith D.E. Allen, Ryan T. Beck

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

1,3-Diaryl-4H-cyclopenta[c]thiophenes are efficiently prepared from 1,2-diaroylcyclopentadienes by use of Lawesson's reagent. η5-Cyclopenta[c]thienyl complexes, [Mn(η5-SC7H3-1,3-R2)(CO)3] (R = Me, Ph), are prepared in high yield by ligand substitution reactions of [MnBr(CO)5] with [SnMe3(SC7H3-1,3-R2)]. Alternatively, thiation with P4S10/NaHCO3 converts [Mn{η5-1,2-C5H3(COR)2)(CO)3] to [Mn(η5-SC7H3-1,3-R2)(CO)3] (R = Ph, 4-tolyl, 4-MeOC6H4, benzo[2,3-b]thienyl). The molecular structures of complexes with R = Me, Ph show planar η5-cyclopenta[c]thienyl ligands, with the manganese atom slightly displaced away from the ring-fusion bond.

Original languageEnglish
Pages (from-to)15010-15011
Number of pages2
JournalJournal of the American Chemical Society
Volume127
Issue number43
DOIs
StatePublished - Nov 2 2005

ASJC Scopus subject areas

  • Catalysis
  • Chemistry (all)
  • Biochemistry
  • Colloid and Surface Chemistry

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