727986-39-2Relevant academic research and scientific papers
Stoichiometric C-C coupling reactions in the coordination sphere of an iridium(III) alkyl
Li, Xingwei,Appelhans, Leah N.,Faller, Jack W.,Crabtree, Robert H.
, p. 3378 - 3387 (2008/10/09)
An alkyl hydride α1-acetone complex of iridium or its α-elimination product undergoes insertion into alkenes to give a carbene dihydride via a proposed pathway that involves C-C bond formation by a rare C(sp3)-C(sp3) reductive elimination followed by a double C-H activation. In MeCN solution, reversible α-elimination equilibrates this carbene dihydride insertion product with its MeCN adduct, an iridium alkyl hydride with diaster-eotopic trans triphenylphosphine ligands ( 2JPP = 382 Hz). Alkynes also react, but they give a coupled η3-allyl complex via a proposed pathway that involves C-C bond formation by C(sp3)-C(sp2) reductive elimination. Crystal structures of key products are reported.
