175088-38-7Relevant articles and documents
Synthesis of Fischer carbene complex of iridium by C-H bond activation of methyl and cyclic ethers: Evidence for reversible α-hydrogen migration
Luecke,Arndtsen,Burger,Bergman
, p. 2517 - 2518 (1996)
We report here a mild and versatile route to Fischer carbene complexes of iridium via the activation of C-H bonds of methyl and cyclic ethers, along with our preliminary studies of this rare family of carbene complexes. Theoretical studies suggest that α-hydrogen migrations can be kinetically favorable if a coordinatively unsaturated species can be accessed. Thus, the lability of the triflate ligand presumably facilitates this process. Further evidence for the rapidity, as well as reversibility, of this rearrangement was obtained by NMR analysis.