Chiral Induction via the Disassembly of Diruthenium(II,III) Tetraacetate by Chiral Diphosphines
dataset
posted on 2011-12-05, 00:00 authored by Ramesh Vadavi, Eamonn
D. Conrad, D. Ian Arbuckle, T. Stanley Cameron, Ernest Essoun, Manuel A. S. Aquino[Ru2(μ-O2CCH3)4(MeOH)2](PF6) reacts with chiral diphosphines
(R,R)- and (S,S)-chiraphos, leading to disassembly and production of the
enantiomers Λ-[Ru(η2-O2CCH3)(η2-(R,R)-chiraphos)2](PF6) and Δ-[Ru(η2-O2CCH3)(η2-(S,S)-chiraphos)2](PF6) in high yield
and purity. X-ray crystallography and solid-state circular dichroism
(CD) show that only the indicated isomers are present in the solid
state. Solution CD measurements also indicate their predominance in
solution.
