Premium
Reactivity of Phosphane–Imidazolium Salts Towards [Ir(COD)Cl] 2 : Preparation of New Hydridoiridium(III) Complexes Bearing Abnormal Carbenes
Author(s) -
Wolf Joffrey,
Labande Agnès,
Daran JeanClaude,
Poli Rinaldo
Publication year - 2008
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200800270
Subject(s) - chemistry , reactivity (psychology) , iridium , medicinal chemistry , aryl , chelation , ring (chemistry) , oxidation state , base (topology) , redox , organic chemistry , catalysis , alkyl , mathematical analysis , alternative medicine , mathematics , pathology , medicine
The unusual reactivity of chelating phosphane–imidazolium salts MesImEtPPh 2 + Br – , DIPP‐ImEtPPh 2 + Br – , and MesImEtPPh 2 + BF 4 – towards the low‐oxidation‐state iridium complex [Ir(COD)(μ‐Cl)] 2 was studied. In the absence of a base, the C–H insertion at the C5 position of the imidazolium ring was the only reaction that occurred, with no normal NHC observed, leading to hydridoiridium(III) complexes. This reactivity was independent of the nature of the imidazolium counteranion and of the substitution pattern of the aryl group. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)