Cyclic Bent Allene Hydrido-Carbonyl Complexes of Ruthenium: Highly Active Catalysts for Hydrogenation of Olefins
作者:Conor Pranckevicius、Louie Fan、Douglas W. Stephan
DOI:10.1021/jacs.5b02203
日期:2015.4.29
found to be among the most active hydrogenation catalysts, achieving comparable activity to Crabtree's catalyst in the hydrogenation of unactivated trisubstituted olefins and superior activity in the hydrogenation of styrene derivatives in side-by-side catalytic runs. RuH(OSO2CF3)(CO)(SIMes)(CBA) was also found to be highly active in olefinselectivehydrogenation in the presence of a variety of unsaturated
Disilaruthena- and Ferracyclic Complexes Containing Isocyanide Ligands as Effective Catalysts for Hydrogenation of Unfunctionalized Sterically Hindered Alkenes
Disilaferra- and disilaruthenacyclic complexescontaining mesityl isocyanide as a ligand, 3' and 4', were synthesized and characterized by spectroscopy and crystallography. Both 3' and 4' showed excellent catalytic activity for the hydrogenation of alkenes. Compared with iron and rutheniumcarbonyl analogues, 1' and 2', the isocyanide complexes 3' and 4' were more robust under the hydrogenation conditions
Palladium-supported graphene oxide has been successfully applied as a catalyst precursor for the selective reduction of α,β-unsaturated carbonyl compounds. Pd nanoparticles were formed during the course of the reduction with only negligible leaching of the Pd species into the reaction mixture.
Bis(phosphine)cobalt Dialkyl Complexes for Directed Catalytic Alkene Hydrogenation
作者:Max R. Friedfeld、Grant W. Margulieux、Brian A. Schaefer、Paul J. Chirik
DOI:10.1021/ja507902z
日期:2014.9.24
ligands, (P-P)Co(CH2SiMe3)2, are active for the hydrogenation of geminal and 1,2-disubstituted alkenes. Hydrogenation of more hindered internal and endocyclic trisubstituted alkenes was achieved through hydroxyl group activation, an approach that also enables directed hydrogenations to yield contrasteric isomers of cyclic alkanes.
带有双齿膦配体 (PP)Co(CH2SiMe3)2 的平面低自旋钴 (II) 二烷基配合物对孪生和 1,2-二取代烯烃的氢化具有活性。更多受阻的内部和环内三取代烯烃的氢化是通过羟基活化实现的,这种方法也使定向氢化产生环状烷烃的对比异构体。
Polymer-supported 2,2′-dipyridylmethane: catalytic activity of transition metal complexes in hydrogenations and oligomerizations
作者:Christina Moberg、László Rákos
DOI:10.1016/0022-328x(87)85180-x
日期:1987.11
The palladium(II) acetate complex of the chelating ligand 2,2′-dipyridylmethane supported on polystyrene-2% divinylbenzene is an efficient catalyst for hydrogenation of alkenes and alkynes. Cyclopentadiene can be reduced with high selectivity to cyclopentene, but no selectivity is observed for the non-conjugated diene 1,5-cyclooctadiene. In the hydrogenation of 3-methylcyclohex-2-en-1-ol only small