|Title||Capturing HBCy2: Using N,O-Chelated Complexes of Rhodium(I) and Iridium(I) for Chemoselective Hydroboration|
|Publication Type||Journal Article|
|Year of Publication||2016|
|Authors||Drover, MW, Schafer, LL, Love, JA|
|Journal||Angewandte Chemie International Edition|
|Keywords||boranes, hemilability, hydroboration, IRIDIUM, rhodium|
1,3-N,O-chelated complexes of RhI and IrI cooperatively and reversibly stabilized the B−H bond of HBCy2 to afford six-membered metallaheterocycles (M=Rh (7) or Ir (8)) having a δ-[M]⋅⋅⋅H-B agostic interaction. Treatment of these Shimoi-type borane adducts 7 or 8 with both an aldehyde and an alkene resulted in chemoselective aldehyde hydroboration and reformation of the 1,3-N,O-chelated starting material. The observed chemoselectivity is inverted from that of free HBCy2, which is selective for alkene hydroboration.