title: Metallocene to metallocene conversion. Synthesis of an oxazoline-substituted pentamethyliridocenium cation from a ferrocenyloxazoline.
abstract: Reaction of (S)-2-ferrocenyl-4-(1-methylethyl)oxazoline with [Cp*IrCl2]2 in benzonitrile with KPF6 and NaOH gave (η(5)-(S)-2-(4-(1-methylethyl))oxazolinylcyclopentadienyl)(η(5)-pentamethylcyclopentadienyl)iridium(iii) hexafluorophosphate (68%). This transformation of an iron-based into an iridium-based metallocene proceeds via the rearrangement, with loss of cyclopentadienyliron, of an intermediate cationic ferrocenyliridacycle.
authors.affiliation: School of Chemistry, Norwich Research Park, Norwich, NR4 7TU, UK. Chris.Richards@uea.ac.uk.
authors.forename: Ross A
authors.initials: RA
authors.lastname: Arthurs
authors.affiliation: EPSRC National Crystallography Service, School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, UK.
authors.forename: Peter N
authors.initials: PN
authors.lastname: Horton
authors.affiliation: EPSRC National Crystallography Service, School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, UK.
authors.forename: Simon J
authors.initials: SJ
authors.lastname: Coles
authors.affiliation: School of Chemistry, Norwich Research Park, Norwich, NR4 7TU, UK. Chris.Richards@uea.ac.uk.
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Richards