Rhodium and iridium complexes containing diphenyl-2-(3-methyl)indolylphosphine: synthesis, structure and application in the catalytic transfer hydrogenation of ketones

Yu-Ying Kuo, Mairi F. Haddow, Adrian Perez-Redondo, Gareth R. Owen

Research output: Contribution to journalArticle (Academic Journal)peer-review

17 Citations (Scopus)

Abstract

The synthesis and characterisation of a number of group nine complexes containing the recently reported ligand, diphenyl-2-(3-methyl) indolylphosphine, is presented herein. The complexes [RhCl(COD){PPh2(C9H8N)}] (1), [IrCl(COD){PPh2(C9H8N)}] (2), [RhCl(NBD){PPh2(C9H8N)}] (3) and [Rh(COD)(MeCN){PPh2(C9H8N)}]BF4 (4) (where COD = 1,5-cyclooctadiene, NBD = 2,5-norbornadiene) have been structurally characterised by X-ray crystallography. The complex [Rh-2(COD)(2){N(Me) = C(H)Ph)}{PPh2(C9H8N)}][BF4](2) (8) was also isolated and structurally characterised. Complex 8 contains a '[Rh(COD)]' fragment coordinated to the aromatic ring of the indolyl group, providing the first example of a eta(6) coordination mode for this ligand. The synthesised complexes were investigated for their activity in the catalytic transfer hydrogenation of ketones and found to be moderately active catalysts.

Original languageEnglish
Pages (from-to)6239-6248
Number of pages10
JournalDalton Transactions
Volume39
Issue number27
DOIs
Publication statusPublished - 2010

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