Results 41 to 50 of about 65,546 (303)

Hydrogenation of Biomass-Derived Levulinic Acid to Gamma- Valerolactone Using Polymer-Based Metal-Containing Catalysts

Chemical Engineering Transactions, 2017
Nowadays the development of effective catalytic systems of selective hydrogenation of levulinic acid (LA) to gamma-valerolactone (GVL) is of high importance.
L.Z. Nikoshvili, I.I. Protsenko, D.A. Abusuek, A.O. Zaykovskaya, A.V. Bykov, V. Matveeva, E. Sulman   +6 more
doaj   +1 more source

An Efficient Continuous Flow Synthesis for the Preparation of N-Arylhydroxylamines: Via a DMAP-Mediated Hydrogenation Process

Molecules, 2023
The selective hydrogenation of nitroarenes to N-arylhydroxylamines is an important synthetic process in the chemical industry. It is commonly accomplished by using heterogeneous catalytic systems that contain inhibitors, such as DMSO.
Jianli Chen, Xinyu Lin, Feng Xu, Kejie Chai, Minna Ren, Zhiqun Yu, Weike Su, Fengfan Liu   +7 more
doaj   +1 more source

Effect of support redox character on catalytic performance in the gas phase hydrogenation of benzaldehyde and nitrobenzene over supported gold [PDF]

, 2016
The authors are grateful to Dr. N. Perret for her involvement in this work. EPSRC support for free access to the TEM facility at the University of St. Andrews and financial support to Dr. M. Li and Dr. X. Wang through the Overseas Research Students Award
Cárdenas-Lizana, Fernando, Keane, Mark A., Li, Maoshuai, Wang, Xiaodong   +3 more
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Advances in selective hydrogenation of nitrobenzene toward p-aminophenol

Sustainable Chemistry for Climate Action
p-Aminophenol is an important intermediate for dyestuff, medical and rubber. Selective hydrogenation of nitrobenzene is a green and environmentally friendly preparation process for the p-aminophenol synthesis.
Jinzhi Lu, Hao Wang, Xiao Cai, Yan Zhu
doaj   +1 more source

Ferrocene-derived P,N ligands : synthesis and application in enantioselective catalysis [PDF]

, 2013
Due to their unique steric and electronic properties, air-stability and modular structure, chiral hybrid P,N-ferrocenyl ligands play a prominent role in the field of asymmetric catalysis.
Noël, Timothy, Van der Eycken, Johan
core   +1 more source

Breaking scaling relationships in alkynol semi-hydrogenation by manipulating interstitial atoms in Pd with d-electron gain

Nature Communications, 2022
Circumventing the linear scaling relationship in the semi-hydrogenation is challenging. Here the authors report a method for breaking the scaling relationships using ordered mesoporous carbon-supported Pd nanocatalysts with d-electron gain by p-block ...
Yang Yang, Xiaojuan Zhu, Lili Wang, Junyu Lang, Guohua Yao, Tian Qin, Zhouhong Ren, Liwei Chen, Xi Liu, Wei Li, Ying Wan   +10 more
doaj   +1 more source

Reduction of phenylacetylenes using Raney Ni-Al alloy, Al powder in the presence of noble metal catalysts in water [PDF]

, 2017
Dedicated to Prof. Kenneth Laali on the occasion of his 66th birthday Received mm-dd-yyyy Accepted mm-dd-yyyy Published on line mm-dd-yyyy Dates to be inserted by editorial office Abstract The chemoselective reduction is based on the reaction of Raney Ni–
Islam, Md. Nurul, Kowser, Zannatul, Rayhan, Ummey, Redshaw, Carl, Yamato, Takehiko   +4 more
core   +1 more source

Selective hydrogenation of phenylacetylene over high-energy facets exposed nanotubular alumina supported palladium catalysts

Catalysis Communications, 2023
High-energy facets exposed nanotubular alumina as well as conventional alumina supported Pd catalysts were synthesized and applied to the selective hydrogenation of phenylacetylene.
Jiangang Lv, Di Wang, Xuefeng Guo, Weiping Ding, Weimin Yang   +4 more
doaj   +1 more source

A Simple Nickel Catalyst Enabling an E‐Selective Alkyne Semihydrogenation [PDF]

, 2019
Stereoselective alkyne semihydrogenations are attractive approaches to alkenes, which are key building blocks for synthesis. With regards to the most atom economic reducing agent dihydrogen (H 2 ), only few catalysts for the challenging E ‐selective ...
Kaewmee, Benyapa, Teichert, Johannes F., Thiel, Niklas Olof, Tran Ngoc, Trung   +3 more
core   +1 more source

Internal lattice oxygen sites invert product selectivity in electrocatalytic alkyne hydrogenation over copper catalysts

Nature Communications
Copper-based catalysts exhibit excellent performance of electrocatalytic alkynes hydrogenation, especially for the selective alkynes hydrogenation toward alkenes.
Mengyu Li, Yimin Jiang, Wei Chen, Yucheng Huang, Yingrui Lu, Leitao Xu, Shengkai Li, Yandong Wu, Zhongcheng Xia, Ruiqi Wang, Shuangyin Wang, Yuqin Zou   +11 more
doaj   +1 more source