scholarly journals Selective Hydrogenation of Nitriles to Secondary Imines over Rh-PVP Catalyst under Mild Conditions

2018 ◽  
Vol 47 (7) ◽  
pp. 938-940 ◽  
Author(s):  
Yoshihide Nishida ◽  
Chandan Chaudhari ◽  
Hirotaka Imatome ◽  
Katsutoshi Sato ◽  
Katsutoshi Nagaoka
Keyword(s):  
Selective Hydrogenation ◽  
Mild Conditions ◽  
Hydrogenation Of Nitriles

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.

Mild and selective hydrogenation of nitriles into primary amines over a supported Ni catalyst

2020 ◽  
Vol 44 (2) ◽  
pp. 549-555 ◽  
Author(s):  
Jianjian Wang ◽  
Qingjie Tang ◽  
Shiwei Jin ◽  
Yanxin Wang ◽  
Ziliang Yuan ◽  
...  
Keyword(s):  
High Activity ◽  
Selective Hydrogenation ◽  
Primary Amines ◽  
Ni Catalyst ◽  
Mild Conditions ◽  
Supported Ni Catalyst ◽  
Supported Ni ◽  
Hydrogenation Of Nitriles

The mesoporous Al2O3 supported Ni catalyst demonstrated a high activity and selectivity for the hydrogenation of nitriles into primary amines under the mild conditions (60–80 °C and 2.5 bar H2) with ammonia as the additive.

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.

Selective Hydrogenation of Nitriles to Primary Amines Catalyzed by a Cobalt Pincer Complex

2015 ◽  
Vol 137 (28) ◽  
pp. 8888-8891 ◽  
Author(s):  
Arup Mukherjee ◽  
Dipankar Srimani ◽  
Subrata Chakraborty ◽  
Yehoshoa Ben-David ◽  
David Milstein
Keyword(s):  
Selective Hydrogenation ◽  
Primary Amines ◽  
Pincer Complex ◽  
Hydrogenation Of Nitriles

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
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