Hydrogenation of supercritical carbon dioxide: Supercritical
carbon dioxide can be hydrogenated rapidly with Ru(II) complex catalysts
to afford formic acid, methyl formate, and dimethylformamide in high yield.
Asymmetric hydrogenation in supercritical fluids: Supercritical
carbon dioxide or flons are usable as reaction media for highly selective
asymmetric hydrogenation of certain olefins catalyzed by chiral transition
Practical hydrogenation of ketones: A Ru-phosphine-1,2-diamine combined
catalyst effects hydrogenation of C=O function preferentially over coexisting
C=C or CzC linkage. This new hydrogenation is very rapid and highly productive,
and is superior to any existing metal hydride reactions. This method exhibits
promise for the practical synthesis of a wide range of important alcoholic
Stereoselective hydrogenation of ketones: Proper selection of the
phosphine and diamine ligands in the Ru-phosphine-1,2-diamine catalyst
allows highly efficient hydrogenation of chiral and achiral ketones with
unprecedented diastereo- or enantioselectivity. The technical applicability
Asymmetric transfer hydrogenation of ketones and imines: Newly designed
Ru(II) complexes having arene and chiral 1,2-diamine auxiliaries effect
the highly enantioselective reduction of ketones or imines using 2-propanol
or formic acid as a hydrogen donor. A wide array of alcohols and amines
of high optical purity are accessible.
Living, stereospecific polymerization of phenylacetylenes: Organo-rhodium(I)
complexes possessing phosphoine and diene ligands initiate polymerization
of phenylacetylenes in a living and stereospecific manner. This method
allows the synthesis of the homo- and block-polymer with a narrow dispersity.