62019-23-2Relevant articles and documents
SBA-15-supported N-coordinate ruthenium(II) materials bearing sulfonamide-type ligands: Effect of ligand backbones on catalytic transfer hydrogenation of ketones and aldehydes
Dayan, Serkan,Kayaci, Nilgun,Kalaycioglu Ozpozan, Nilgun,Dayan, Osman
, (2017)
[RuLCl(p-cymene)] (L?=?N-arylsulfonylphenylenediamine) complexes (2a–d) were synthesized from the reaction between [Ru(p-cymene)Cl2]2 and ligand. Additionally, SBA-15–[RuLCl(p-cymene)] derived catalysts (3a–d) w
Ruthenium-p-cymene Complex Side-Wall Covalently Bonded to Carbon Nanotubes as Efficient Hybrid Transfer Hydrogenation Catalyst
Blanco, Matías,Cembellín, Sara,Agnoli, Stefano,Alemán, José
, p. 5156 - 5165 (2021/11/05)
A half-sandwich ruthenium-p-cymene organometallic complex has been immobilized at Single Walled Carbon Nanotubes (SWNT) sidewalls through a stepwise covalent chemistry protocol. The introduction of amino groups by means of diazonium-chemistry protocols leads the grafting at the outer walls of the nanotubes. This hybrid material is active in the transfer hydrogenation of ketones to yield alcohols, using as hydrogen source 2-propanol. SWNT?NH2?Ru presents a broad scope, performing the reaction under aerobic conditions and can be recycled over 9 consecutive reaction runs without losing activity or leaching ruthenium out. Comparison of the activity with related homogeneous catalysts reveals an improved performance due to the covalent bond between the metal and the material, achieving turnover frequencies as high as 192774 h?1.
Enantioselective Cyclopropanation/[1,5]-Hydrogen Shift to Access Rauhut-Currier Product
Kim, Seung Tae,Pandit, Rameshwar Prasad,Yun, Jaesook,Ryu, Do Hyun
supporting information, p. 213 - 217 (2021/01/09)
A Michael addition initiated cyclopropanation/[1,5]-hydrogen shift has been developed for the enantioselective synthesis of Rauhut-Currier products. The reaction of α-alkyl diazoesters and in situ generated o-quinone methides proceeds in the presence of c