Preparation and Reactions of a Novel Five-Coordinate Ruthenium Complex [RuH(BINAP)2]PF6 and Formation of the First Chiral Molecular Hydrogen Complex [RuH(η2-H2)(BINAP)2]PF6 (BINAP = (R)-Bis(diphenylphosphino)-1,1′-binaphthyl)
- 5 December 1988
- journal article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 17 (12) , 2055-2058
- https://doi.org/10.1246/cl.1988.2055
Abstract
A five-coordinate ruthenium complex with the chiral bisphosphine, (R)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (BINAP), [RuH(BINAP)2]PF6 (1) was prepared. The complex 1 was found to be a mixture of two isomers in solution. The exposure of 1 to hydrogen gas gave a chiral molecular hydrogen complex, trans-[RuH(η2-H2)(BINAP)2]PF6 (2). [RuD(η2-HD)(BINAP)2]+ ion formed by introducing D2 gas into a THF-d8 solution of 1 has a H-D coupling constant J(H,D) = 30 Hz (1:1:1), diagnostic of η2-HD complex.This publication has 8 references indexed in Scilit:
- H-H, C-H, and Related Sigma-Bonded Groups as LigandsPublished by Elsevier ,1988
- Homogeneous asymmetric hydrogenation of functionalized ketonesJournal of the American Chemical Society, 1988
- Ruthenium (II)-BINAP complex catalyzed asymmetric hydrogenation of unsaturated dicarboxylic acidsTetrahedron Letters, 1987
- Asymmetric hydrogenation of .beta.-keto carboxylic esters. A practical, purely chemical access to .beta.-hydroxy esters in high enantiomeric purityJournal of the American Chemical Society, 1987
- Spiro asymmetric induction. 3. Synthesis of optically pure syn- or anti-.alpha.,.beta.-dihydroxy esters by the aldol condensation of chiral glycolate enolatesThe Journal of Organic Chemistry, 1987
- Asymmetric synthesis of isoquinoline alkaloids by homogeneous catalysisJournal of the American Chemical Society, 1986
- Two molecular hydrogen complexes: trans-[M(.eta.2-H2)(H)(PPh2CH2CH2PPh2)2]BF4 (M = Fe, Ru). The crystal structure determination of the iron complexJournal of the American Chemical Society, 1985
- Solution structure of five-coordinate complexes of ruthenium(II): evidence for a square-pyramidal geometry for the cations [RuXL4]+ (X = H, C2Ph; L = PMe2Ph)Inorganic Chemistry, 1985