Reversible C-H bond activation reactions of the N-heterocyclic carbene ligands in Ru(Ph2PCH2CH2CH2PPh2)(IMes)(CO)H-2 and Ru(Ph2AsCH2CH2PPh2)(IMes)(CO)H-2 (IMes=1,3-dimesityl-1,3-dihydro-2H-imidazol-2-ylidene)

M J Chilvers, R F R Jazzar, M F Mahon, M K Whittlesey

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Abstract

Thermolysis of Ru(IMes)(dppp)(CO)H-2 (1, IMes = 1,3-dimesityl-1,3-dihydro-2H-imidazol-2-ylidene; dppp = Ph2PCH2CH2CH2PPh2) in the presence of trimethylvinylsilane yields Ru(I-Mes')(dppp)(CO)H (2) resulting from intramolecular ArCH2 -H C-H bond activation of the N-heterocyclic carbene ligand. The structures of 1 and 2 have been established by X-ray crystallography. Treatment of Ru(IMes)(arphos)(CO)H2 (3, arphos=Ph2AsCH2CH2PPh2) with CH2=CHSiMe3 at 85degreesC produces a mixture of three C-H activated products 4a-c. The C-H activated complexes 2 and 4a-c reform their dihydride precursors upon heating under hydrogen.
LanguageEnglish
Pages1111-1114
Number of pages4
JournalAdvanced Synthesis & Catalysis
Volume345
Issue number9-10
DOIs
StatusPublished - 2003

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Thermolysis
X ray crystallography
Carbon Monoxide
Chemical activation
Ligands
Heating
Hydrogen
carbene

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@article{de0886975da34ff98470b729bedf76ab,
title = "Reversible C-H bond activation reactions of the N-heterocyclic carbene ligands in Ru(Ph2PCH2CH2CH2PPh2)(IMes)(CO)H-2 and Ru(Ph2AsCH2CH2PPh2)(IMes)(CO)H-2 (IMes=1,3-dimesityl-1,3-dihydro-2H-imidazol-2-ylidene)",
abstract = "Thermolysis of Ru(IMes)(dppp)(CO)H-2 (1, IMes = 1,3-dimesityl-1,3-dihydro-2H-imidazol-2-ylidene; dppp = Ph2PCH2CH2CH2PPh2) in the presence of trimethylvinylsilane yields Ru(I-Mes')(dppp)(CO)H (2) resulting from intramolecular ArCH2 -H C-H bond activation of the N-heterocyclic carbene ligand. The structures of 1 and 2 have been established by X-ray crystallography. Treatment of Ru(IMes)(arphos)(CO)H2 (3, arphos=Ph2AsCH2CH2PPh2) with CH2=CHSiMe3 at 85degreesC produces a mixture of three C-H activated products 4a-c. The C-H activated complexes 2 and 4a-c reform their dihydride precursors upon heating under hydrogen.",
author = "Chilvers, {M J} and Jazzar, {R F R} and Mahon, {M F} and Whittlesey, {M K}",
note = "ID number: ISI:000185881500009",
year = "2003",
doi = "10.1002/adsc.200303074",
language = "English",
volume = "345",
pages = "1111--1114",
journal = "Advanced Synthesis & Catalysis",
issn = "1615-4150",
publisher = "Wiley-VCH Verlag",
number = "9-10",

}

TY - JOUR

T1 - Reversible C-H bond activation reactions of the N-heterocyclic carbene ligands in Ru(Ph2PCH2CH2CH2PPh2)(IMes)(CO)H-2 and Ru(Ph2AsCH2CH2PPh2)(IMes)(CO)H-2 (IMes=1,3-dimesityl-1,3-dihydro-2H-imidazol-2-ylidene)

AU - Chilvers,M J

AU - Jazzar,R F R

AU - Mahon,M F

AU - Whittlesey,M K

N1 - ID number: ISI:000185881500009

PY - 2003

Y1 - 2003

N2 - Thermolysis of Ru(IMes)(dppp)(CO)H-2 (1, IMes = 1,3-dimesityl-1,3-dihydro-2H-imidazol-2-ylidene; dppp = Ph2PCH2CH2CH2PPh2) in the presence of trimethylvinylsilane yields Ru(I-Mes')(dppp)(CO)H (2) resulting from intramolecular ArCH2 -H C-H bond activation of the N-heterocyclic carbene ligand. The structures of 1 and 2 have been established by X-ray crystallography. Treatment of Ru(IMes)(arphos)(CO)H2 (3, arphos=Ph2AsCH2CH2PPh2) with CH2=CHSiMe3 at 85degreesC produces a mixture of three C-H activated products 4a-c. The C-H activated complexes 2 and 4a-c reform their dihydride precursors upon heating under hydrogen.

AB - Thermolysis of Ru(IMes)(dppp)(CO)H-2 (1, IMes = 1,3-dimesityl-1,3-dihydro-2H-imidazol-2-ylidene; dppp = Ph2PCH2CH2CH2PPh2) in the presence of trimethylvinylsilane yields Ru(I-Mes')(dppp)(CO)H (2) resulting from intramolecular ArCH2 -H C-H bond activation of the N-heterocyclic carbene ligand. The structures of 1 and 2 have been established by X-ray crystallography. Treatment of Ru(IMes)(arphos)(CO)H2 (3, arphos=Ph2AsCH2CH2PPh2) with CH2=CHSiMe3 at 85degreesC produces a mixture of three C-H activated products 4a-c. The C-H activated complexes 2 and 4a-c reform their dihydride precursors upon heating under hydrogen.

U2 - 10.1002/adsc.200303074

DO - 10.1002/adsc.200303074

M3 - Article

VL - 345

SP - 1111

EP - 1114

JO - Advanced Synthesis & Catalysis

T2 - Advanced Synthesis & Catalysis

JF - Advanced Synthesis & Catalysis

SN - 1615-4150

IS - 9-10

ER -