[Ru(NHC)(xantphos)(CO)H2] complexes: intramolecular C–H activation and applications in C–C bond formation†
Abstract
Treatment of [Ru(PPh3)(xantphos)(CO)H2] (1) with the CHSiMe3. Addition of H2 to 2 yields [Ru(IEt2Me2)(xantphos)(CO)H2] (5), while H2 reacts with 7 to reform 6. Complexes 2–4 and 7 catalyse the Knoevenagel reaction of PhCH2OH with tBuC(O)CH2CN, although they prove to be somewhat less active than the phosphine complex 1.
- This article is part of the themed collection: N-heterocyclic carbenes