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

doi:10.1021/om020997+

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

Weizmann Institute of Science, Israel

Research output: Contribution to journal › Article › peer-review

30 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 language	English
Pages (from-to)	2806-2809
Number of pages	4
Journal	Organometallics
Volume	22
Issue number	13
DOIs	https://doi.org/10.1021/om020997+
Publication status	Published - Jun 23 2003

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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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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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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