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

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)1111-1114
Number of pages4
JournalAdvanced Synthesis & Catalysis
Volume345
Issue number9-10
DOIs
Publication statusPublished - 2003

Fingerprint Dive into the research topics of '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)'. Together they form a unique fingerprint.

Cite this