B–C Bond Cleavage and Ru–C Bond Formation from a Phosphinoborane: Synthesis of a Bis‑σ Borane Aryl-Ruthenium Complex
- Audrey Cassen (1701472)
- Laure Vendier (1347666)
- Jean-Claude Daran (1701466)
- Amalia I. Poblador-Bahamonde (1701469)
- Eric Clot (1574785)
- Gilles Alcaraz (1701475)
- Sylviane Sabo-Etienne (1545376)
DOIAbstract
Compared with the reactivity of <i>o</i>-Ph<sub>2</sub>P(C<sub>6</sub>H<sub>4</sub>–CH<sub>2</sub>)BH(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>(PCy<sub>3</sub>)<sub>2</sub>], the behavior of the phosphinoborane Ph<sub>2</sub>P(CH<sub>2</sub>–C<sub>6</sub>H<sub>4</sub>)BH(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 compl...
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