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 language | English |
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Pages (from-to) | 1111-1114 |
Number of pages | 4 |
Journal | Advanced Synthesis & Catalysis |
Volume | 345 |
Issue number | 9-10 |
DOIs | |
Publication status | Published - 2003 |