Intramolecular Allylation of a Ru-Cp* Methyl Group
摘要:
The salts [Ru(Cp*)(CH3CN)(N,N)](PF6), 6 (N,N = bipyridine, 4,4'-dimethylbipyridine, and phenanthroline), react with allyl carbonates to afford new complexes that contain tethered ligands derived from deprotonation of one Cp* methyl group. The new Ru tetramethyl Cp complexes contain a CH2-CHRCH=CH2 fragment (R = H or Ph), which coordinates to the metal via the double bond. The salts 6 isomerize the branched carbonate PhCH(OCO2But)CH=CH2 to the linear isomer.