382147-45-7Relevant academic research and scientific papers
Backbone tuning in indenylidene-ruthenium complexes bearing an unsaturated N-heterocyclic carbene
Urbina-Blanco, Cesar A.,Bantreil, Xavier,Clavier, Herve,Slawin, Alexandra M.Z.,Nolan, Steven P.
, p. 1120 - 1126 (2010)
The steric and electronic influence of backbone substitution in IMes-based (IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazol-2- ylidene) N-heterocyclic carbenes (NHC) was probed by synthesizing the [RhCl(CO)2(NHC)] series of complexes to quantify
Studies of the reactivity of N-heterocyclic carbenes with halogen and halide sources
Cole, Marcus L.,Jones, Cameron,Junk, Peter C.
, p. 1296 - 1303 (2007/10/03)
The reactivity of the N-heterocyclic carbene (NHC) 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene, IMes, with a series of halide sources, including 1,1,1,2,2,2-hexachloroethane, 1,2-dibromoethane and dibromine, has been assessed. These result in the formation of the imidazolium species 1,3-bis(2,4,6-trimethylphenyl)-2-chloroimidazolium chloride, [IMesCl][Cl], 1,3-bis(2,4,6-trimethylphenyl)imidazolium bromide, [IMesH][Br] and 1,3-bis(2,4,6-trimethylphenyl)-2-bromoimidazolium bromide, [IMesBr][Br]. Treatment of IMes with 2.0 equiv. of carbon tetrabromide, CBr4, in tetrahydrofuran or benzene yields the new NHC 1,3-bis(2,4,6-(trimethylphenyl)-4,5-dibromoimidazol-2-ylidene, IMesBr2. IMesBr2 is indefinitely stable in air and has been characterised by XRD. The molecular and supramolecular structures of compounds [IMesBr][Br]·3MeCN, [IMesH][Br], [IMesCl][Cl]·MeCN and [IMesCl][AlCl4], the latter formed from the addition of aluminium trichloride to [IMesCl][Cl], are discussed.
