Biobased Green Process: Selective Hydrogenation of 5-Hydroxymethylfurfural to 2,5-Dimethyl Furan under Mild Conditions Using Pd-Cs2.5H0.5PW12O40/K-10 Clay

2016 ◽  
Vol 4 (8) ◽  
pp. 4113-4123 ◽  
Author(s):  
Anil B. Gawade ◽  
Manishkumar S. Tiwari ◽  
Ganapati D. Yadav
Keyword(s):  
Selective Hydrogenation ◽  
Green Process ◽  
Mild Conditions

scholarly journals High-Active Metallic-Activated Carbon Catalysts for Selective Hydrogenation

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Nicolás Carrara ◽  
Carolina Betti ◽  
Fernando Coloma-Pascual ◽  
María Cristina Almansa ◽  
Laura Gutierrez ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Selective Hydrogenation ◽  
Nickel Catalysts ◽  
Metallic Phase ◽  
Hydrogen Chemisorption ◽  
Electronic Effects ◽  
X Ray ◽  
Mild Conditions ◽  
Temperature Programmed ◽  
Carbon Catalysts

A series of low-loaded metallic-activated carbon catalysts were evaluated during the selective hydrogenation of a medium-chain alkyne under mild conditions. The catalysts and support were characterized by ICP, hydrogen chemisorption, Raman spectroscopy, temperature-programmed desorption (TPD), temperature-programmed reduction (TPR), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR micro-ATR), transmission electronic microscopy (TEM), and X-ray photoelectronic spectroscopy (XPS). When studying the effect of the metallic phase, the catalysts were active and selective to the alkene synthesis. NiCl/C was the most active and selective catalytic system. Besides, when the precursor salt was evaluated, PdN/C was more active and selective than PdCl/C. Meanwhile, alkyne is present in the reaction media, and geometrical and electronic effects favor alkene desorption and so avoid their overhydrogenation to the alkane. Under mild conditions, nickel catalysts are considerably more active and selective than the Lindlar catalyst.

scholarly journals The selective hydrogenation of furfural over supported palladium nanoparticle catalysts prepared by sol-immobilisation: effect of catalyst support and reaction conditions

2018 ◽  
Vol 8 (1) ◽  
pp. 252-267 ◽  
Author(s):  
Reem Albilali ◽  
Mark Douthwaite ◽  
Qian He ◽  
Stuart H. Taylor
Keyword(s):  
Selective Hydrogenation ◽  
Catalyst Support ◽  
Palladium Nanoparticle ◽  
Reaction Conditions ◽  
Nanoparticle Catalysts ◽  
Mild Conditions ◽  
Supported Palladium

Pd-TiO2 nanoparticles prepared by sol-immobilisation are very active for selective hydrogenation of furfural under mild conditions, and addition of Pt enhances performance to achieve a 95% yield of tetrahydrofurfuryl alcohol.

Selective hydrogenation of nitroarenes under mild conditions by the optimization of active sites in a well defined Co@NC catalyst

2020 ◽  
Vol 22 (17) ◽  
pp. 5730-5741
Author(s):  
Shuo Chen ◽  
Li-Li Ling ◽  
Shun-Feng Jiang ◽  
Hong Jiang
Keyword(s):  
Particle Size ◽  
Catalytic Hydrogenation ◽  
Selective Hydrogenation ◽  
Active Sites ◽  
Metal Organic Framework ◽  
Nitro Compounds ◽  
Active Species ◽  
Mild Conditions ◽  
Metal Organic ◽  
Aromatic Nitro

The defined catalyst (Co@NC) is prepared through the pyrolysis of the Co-centered metal–organic framework (MOF), in which Co active species (Co–Nx, surface Co NPs) and particle size play important roles in the catalytic hydrogenation of aromatic nitro compounds.

Highly efficient one-pot multi-directional selective hydrogenation and N-alkylation catalyzed by Ru/LDH under mild conditions

2020 ◽  
Vol 596 ◽  
pp. 117536 ◽  
Author(s):  
Sishi Zhang ◽  
Jie Xu ◽  
Hongmei Cheng ◽  
Cuicui Zang ◽  
Bin Sun ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
One Pot ◽  
Mild Conditions ◽  
Highly Efficient

scholarly journals Highly selective hydrogenation of furfural over supported Pt nanoparticles under mild conditions

2016 ◽  
Vol 180 ◽  
pp. 580-585 ◽  
Author(s):  
Martin J. Taylor ◽  
Lee J. Durndell ◽  
Mark A. Isaacs ◽  
Christopher M.A. Parlett ◽  
Karen Wilson ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Pt Nanoparticles ◽  
Mild Conditions

A New Supported Rhodium Catalyst for Selective Hydrogenation of Nitriles to Primary Amines

2007 ◽  
Vol 72 (4) ◽  
pp. 468-474 ◽  
Author(s):  
Peter T. Witte
Keyword(s):  
Selective Hydrogenation ◽  
High Selectivity ◽  
Rhodium Catalyst ◽  
Primary Amines ◽  
Mild Conditions ◽  
Pharmaceutical Applications ◽  
Strong Acids ◽  
Hydrogenation Of Nitriles ◽  
Supported Rhodium Catalyst

Nitriles are converted to primary amines with high selectivity using a newly developed alumina-supported rhodium catalyst. The high selectivity is obtained without any additives, which are often used to prevent the formation of higher amines. The catalyst is active under mild conditions in various solvents, which makes it specifically suitable for use in pharmaceutical applications or for other substrates that can react with additives like strong acids or bases.

scholarly journals Ruthenium Nanoparticles Supported on Hierarchical Nitrogen-Doped Carbon Nanocages for Selective Hydrogenation of Acetophenone in Mild Conditions

2017 ◽  
Vol 75 (7) ◽  
pp. 686 ◽  
Author(s):  
Yuejin Cai ◽  
Chenxia Liu ◽  
Ou Zhuo ◽  
Qiang Wu ◽  
Lijun Yang ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Ruthenium Nanoparticles ◽  
Nitrogen Doped ◽  
Mild Conditions ◽  
Nitrogen Doped Carbon

Highly-efficient and magnetically-separable ZnO/Co@N-CNTs catalyst for hydrodeoxygenation of lignin and its derived species under mild conditions

2019 ◽  
Vol 21 (5) ◽  
pp. 1021-1042 ◽  
Author(s):  
Virendra Ranaware ◽  
Deepak Verma ◽  
Rizki Insyani ◽  
Asim Riaz ◽  
Seung Min Kim ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Mild Conditions ◽  
Highly Efficient ◽  
Magnetically Separable

An efficient bimetallic ZnO/Co@N-CNT catalyst was designed for selective hydrogenation and hydrodeoxygenation of lignin and its derived components in water.

H2O as the Sole Hydrogen Source for Ni-Catalyzed Reduction of Alkenes

2019 ◽  
Author(s):  
Yichen Wu ◽  
Tao liu ◽  
Dongping Chen ◽  
Daoming Wang ◽  
Peng Wang
Keyword(s):  
Nickel Catalyst ◽  
Selective Hydrogenation ◽  
Functional Group ◽  
Catalytic Amount ◽  
Mild Conditions ◽  
Water As Solvent ◽  
Direct Hydrogenation ◽  
High Yields

Herein, we reported a nickel catalyzed hydrogenation of alkenes with water as the sole hydrogen source. Employing Zn as reductant and water as solvent in the presence of a catalytic amount of nickel catalyst led to direct hydrogenation of a series of electron-rich and electron-deficient alkenes in high yields. This protocol features unprecedented heterocycle and functional group tolerance under facile and mild conditions. Selective hydrogenation of the substrates containing additional reducible functionalities, such as alkenyl, alkynyl, chloride, ketone, and benzyl group etc, was also realized.

The ionic liquid microphase enhances the catalytic activity of Pd nanoparticles supported by a metal–organic framework

2015 ◽  
Vol 17 (8) ◽  
pp. 4178-4182 ◽  
Author(s):  
Li Peng ◽  
Jianling Zhang ◽  
Shuliang Yang ◽  
Buxing Han ◽  
Xinxin Sang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Catalytic Activity ◽  
Liquid Metal ◽  
Selective Hydrogenation ◽  
Metal Organic Framework ◽  
Pd Nanoparticles ◽  
Mild Conditions ◽  
Metal Organic ◽  
Organic Framework

Here a Pd/ionic liquid/metal–organic framework catalyst is developed, which shows high activities in catalyzing the selective hydrogenation of alkynes under mild conditions.

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