1 research outputs found
B–C Bond Cleavage and Ru–C Bond Formation from a Phosphinoborane: Synthesis of a Bis‑σ Borane Aryl-Ruthenium Complex
No full textCompared
with the reactivity of <i>o</i>-Ph<sub>2</sub>PÂ(C<sub>6</sub>H<sub>4</sub>–CH<sub>2</sub>)ÂBHÂ(N<sup><i>i</i></sup>Pr<sub>2</sub>) with [RuH<sub>2</sub>(η<sup>2</sup>-H<sub>2</sub>)<sub>2</sub>Â(PCy<sub>3</sub>)<sub>2</sub>], the behavior
of the phosphinoborane Ph<sub>2</sub>PÂ(CH<sub>2</sub>–C<sub>6</sub>H<sub>4</sub>)ÂBHÂ(N<sup><i>i</i></sup>Pr<sub>2</sub>) is radically different. No agostic σ-B–H complex
could be observed, the reaction leading to the isolation of a new
bis-σ borane aryl-ruthenium complex via B–C bond cleavage
and Ru–C bond formation. Reactivity studies of this complex
with dihydrogen and/or HBAr<sup>F</sup><sub>4</sub> as a proton source
enable the formation of a tethered chiral-at-Ru piano-stool cationic
complex
