Synthesis of a ruthenium bis(diisopropylamino(isocyano)borane) complex from the activation of an amino(cyano)borane

Maximilian Joost (1) , Gilles Alcaraz (1) , Laure Vendier (1) , Amalia Poblador-Bahamonde (2) , Eric Clot (2) , Sylviane Sabo-Etienne (1)

1 LCC - Laboratoire de chimie de coordination
2 ICGM ICMMM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier

The reactivity of the amino(cyano)borane iPr2NBH(CN) (2) towards [RuH2(η2-H2)2(PCy3)2] (3) was investigated. Our study reveals that the formation of the bis(isocyanoborane) ruthenium complex [RuH(CN)(CN-BHNiPr2)2(PCy3)2] (6) occurs via the intermediacy of the bis(σ-B-H) ruthenium complex [RuH(CN)(H2BNiPr2)(PCy3)2] (5). This transformation involves BCN linkage isomerisation in 2. The diisopropylaminoborane ligand in 5 can be displaced to ultimately produce the bis(σ-borane) complex [RuH2(η2:η2-H2BNiPr2)(PCy3)2] (4) as a by-product.

Domaines: Chimie de coordination

Maximilian Joost, Gilles Alcaraz, Laure Vendier, Amalia Poblador-Bahamonde, Eric Clot, et al.. Synthesis of a ruthenium bis(diisopropylamino(isocyano)borane) complex from the activation of an amino(cyano)borane. Dalton Transactions, 2013, 42, pp.776-781. ⟨10.1039/C2DT32274A⟩. ⟨hal-00764430⟩