948302-04-3Relevant academic research and scientific papers
Aminoborane σ complexes: Significance of hydride co-ligands in dynamic processes and dehydrogenative borylene formation
Addy, David A.,Bates, Joshua I.,Kelly, Michael J.,Riddlestone, Ian M.,Aldridge, Simon
supporting information, p. 1583 - 1586 (2013/05/09)
Systems of the type [(p-cym)Ru(PR3)(H)(H2BN iPr2)]+ (R = Cy, Ph) can be synthesized from (p-cym)Ru(PR3)Cl2 and H2BNiPr 2/Na[BArf4] and are best formulated as (hydrido)ruthenium κ1-aminoborane complexes. VT-NMR measurements have been used to probe the σ-bond metathesis process leading to Ru-H/H-B exchange, yielding an activation barrier of ΔG ? = 7.5 kcal mol-1 at 161 K. Moreover, in contrast to the case for related non-hydride-containing systems, reactivity toward alkenes constitutes a viable route to a metal borylene complex via sacrificial hydrogenation.
Catalytic activity of bis-phosphine ruthenium(II) - Arene compounds: Chemoselective hydrogenation and mechanistic insights
Chaplin, Adrian B.,Dyson, Paul J.
, p. 4357 - 4360 (2008/10/09)
Bis-phosphine ruthenium(II)-arene complexes have been found to be highly active and chemoselective catalysts for the hydrogenation of aldehydes in the presence of olefinic bonds. Mechanistic studies, including comparisons with a structural analogue, reactions of an isolated hydride complex, base poisoning experiments, and a computational analysis, help rationalize the preferential hydrogenation of C=O bonds, which is suggested to proceed via an ionic outer-sphere mechanism.
