Reactivity of [Ir(COE)2(solvent)2]PF6 complexes toward alkylphosphines

Room-temperature C-H activation (cyclometalation) and isolation of a 14-electron alkyl-iridium(III) complex

Reto Dorta, Roman Goikhman, David Milstein

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Isolated, cationic bis(cyclooctene)-Ir(I) complexes stabilized by acetonitrile or acetone solvent molecules were obtained and reacted with simple alkylphosphines, leading to selective displacement of the cyclooctene ligand. With the bulky tBu3P, facile intramolecular C-H activation is observed, giving cyclometalated, solvent-stabilized bis(phosphine)-Ir(III) species and leading to the isolation of the first 14-electron alkyl-Ir(III) complex.

Original languageEnglish
Pages (from-to)2806-2809
Number of pages4
JournalOrganometallics
Volume22
Issue number13
DOIs
Publication statusPublished - Jun 23 2003

Fingerprint

Iridium
phosphine
iridium
isolation
reactivity
Chemical activation
activation
Electrons
room temperature
Acetone
phosphines
acetone
acetonitrile
electrons
Ligands
Temperature
ligands
Molecules
molecules

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Organic Chemistry

Cite this

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title = "Reactivity of [Ir(COE)2(solvent)2]PF6 complexes toward alkylphosphines: Room-temperature C-H activation (cyclometalation) and isolation of a 14-electron alkyl-iridium(III) complex",
abstract = "Isolated, cationic bis(cyclooctene)-Ir(I) complexes stabilized by acetonitrile or acetone solvent molecules were obtained and reacted with simple alkylphosphines, leading to selective displacement of the cyclooctene ligand. With the bulky tBu3P, facile intramolecular C-H activation is observed, giving cyclometalated, solvent-stabilized bis(phosphine)-Ir(III) species and leading to the isolation of the first 14-electron alkyl-Ir(III) complex.",
author = "Reto Dorta and Roman Goikhman and David Milstein",
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TY - JOUR

T1 - Reactivity of [Ir(COE)2(solvent)2]PF6 complexes toward alkylphosphines

T2 - Room-temperature C-H activation (cyclometalation) and isolation of a 14-electron alkyl-iridium(III) complex

AU - Dorta, Reto

AU - Goikhman, Roman

AU - Milstein, David

PY - 2003/6/23

Y1 - 2003/6/23

N2 - Isolated, cationic bis(cyclooctene)-Ir(I) complexes stabilized by acetonitrile or acetone solvent molecules were obtained and reacted with simple alkylphosphines, leading to selective displacement of the cyclooctene ligand. With the bulky tBu3P, facile intramolecular C-H activation is observed, giving cyclometalated, solvent-stabilized bis(phosphine)-Ir(III) species and leading to the isolation of the first 14-electron alkyl-Ir(III) complex.

AB - Isolated, cationic bis(cyclooctene)-Ir(I) complexes stabilized by acetonitrile or acetone solvent molecules were obtained and reacted with simple alkylphosphines, leading to selective displacement of the cyclooctene ligand. With the bulky tBu3P, facile intramolecular C-H activation is observed, giving cyclometalated, solvent-stabilized bis(phosphine)-Ir(III) species and leading to the isolation of the first 14-electron alkyl-Ir(III) complex.

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U2 - 10.1021/om020997+

DO - 10.1021/om020997+

M3 - Article

VL - 22

SP - 2806

EP - 2809

JO - Organometallics

JF - Organometallics

SN - 0276-7333

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