Ruthenium complexes of an abnormally bound, anionic N-heterocyclic carbene.
The abnormally bound, anionic NHC-borane complex [Ru(IDipp-BF3)(p-cymene)Cl]2 (4; IDipp-BF3=1,3-(2,6-iPr2C6H3)2-2-BF3(C3HN2)-4-yl) was synthesized by transmetalation from Li[(IDipp-BF3)2Ag]. Addition of donors gave species of the form [Ru(IDipp-BF3)(p-cymene)(L)Cl], whereas halide abstraction with Ag(Et2O)[B(C6F5)4] gave C-H activation of the methine position of the IDipp-BF3 ligand.
Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, M5S3H6 (Canada).
Conor
C
Pranckevicius
Douglas W
DW
Stephan
CH activation; abnormal NHCs; anionic NHCs; carbenes; ruthenium