Study on the selective hydrogenation of isophorone
RSC Advances, 2021 The selective hydrogenation of isophorone to TMCH can be influenced by the tetrahydrofuran solvent. The conversion of isophorone is 100%, and the yield of 3,3,5-trimethylcyclohexanone is 98.1% under RANEY® Ni and THF.
Lei Xu +4 more
openaire +3 more sources
Selective photocatalytic hydrogenation of citral over pure TiO 2 nanoparticle
Materials Research Express, 2022 The α , β -unsaturated aldehydes selective hydrogenation, especially the C=O bond, is an extremely challenging topic in the field of catalysis. In this paper, a series of pure TiO _2 photocatalysts obtained at various calcination temperature were tested ...
Chao Luo +6 more
doaj +1 more source
Site-Selective Hydrogenation of Electron-Poor Alkenes and Dienes Enabled by a Rh-Catalyzed Hydride Addition/Protonolysis Mechanism [PDF]
, 2022 The transition metal catalyzed hydrogenation of alkenes is a well-developed technology used on a lab scale as well as on large scales in the chemical industry. Site- and chemoselective mono-hydrogenations of polarized conjugated dienes remain challenging.
Duanyang, Kong +6 more
core +2 more sources
Improvement of the selectivity of isophorone hydrogenation by Lewis acids [PDF]
Royal Society Open Science, 2018 The selective hydrogenation of isophorone (3,5,5-trimethyl-2- cyclohexen-1-one) to produce 3,3,5-trimethylcyclohexanone (TMCH), an important organic solvent and pharmaceutical intermediate, is of significance in industry.
Yucui Hou +3 more
doaj +1 more source
Electrochemistry-assisted selective butadiene hydrogenation with water
Nature Communications, 2023 Alkene feedstocks are used to produce polymers with a market expected to reach 128.4 million metric tons by 2027. Butadiene is one of the impurities poisoning alkene polymerization catalysts and is usually removed by thermocatalytic selective ...
Yong-Qing Yan +5 more
doaj +1 more source
Electrocatalytic hydrogenation of quinolines with water over a fluorine-modified cobalt catalyst
Nature Communications, 2022 Selective hydrogenation of quinolines with easy-to-handle hydrogen donors and cost-effective catalysts is desirable. Here electrocatalytic quinoline hydrogenation to 1,2,3,4-tetrahydroquinolines is reported with water over a fluorine-modified cobalt.
Shuoshuo Guo +6 more
doaj +1 more source
Nanomaterials, 2022 Selective hydrogenation of 1,3-butadiene (BD) is regarded as the most promising route for removing BD from butene streams. Bimetallic Pd–Ni catalysts with changed Pd/Ni molar ratios and monometallic Pd catalysts were synthesized using two differently ...
Lili Liu +8 more
doaj +1 more source
Developments in the hydrogenation of challenging substrates utilising transition metal complexes [PDF]
, 2015 This thesis describes the developments of new protocols for the hydrogenation of challenging substrates. Three specific substrates were highlighted for study after an initial review of the literature; benzofurans, esters and bulky ketones.
Carpenter, Ian
core +2 more sources
Selective hydrogenation in trickle-bed reactor. Experimental and modelling including partial wetting. [PDF]
, 2003 A steady state model of a trickle bed reactor is developed for the consecutive hydrogenation of 1,5,9-cyclododecatriene on a Pd/Al2O3 catalyst. Various experiments have shown that the selectivity of this reaction towards the product of interest is much ...
Wilhelm, Anne-Marie +3 more
core +1 more source
"Liq. Hydrogen carrier and C1 source – Methanol” mediated Selective N-Methylation of Urea via Transfer Hydrogenation catalyzed by Pd/C [PDF]
, 2023 We report the catalytic transfer hydrogenation of urea derivatives using green hydrogen from methanol, which is the most ambitious effort in this hydrogenation world.
KIRUTHIGADEVI , KAMARAJ +3 more
core +2 more sources