Results 1 to 10 of about 24,483 (311)

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, Ya Chen, Zhao Wang, Li-Hua Chen, Hao-Lin Tang, Bao-Lian Su   +5 more
doaj   +2 more sources

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, Shaoyin Sun, Xing Zhang, Haofei Gao, Wei Wang   +4 more
openaire   +3 more sources

Construction of N-Doped Carbon-Modified Ni/SiO₂ Catalyst Promoting Cinnamaldehyde Selective Hydrogenation

Molecules, 2023
At present, the selective hydrogenation of α, β-unsaturated aldehydes remains a challenge due to competition between unsaturated functional groups (C=C and C=O).
Yongwang Ren, Huizhong Xu, Beibei Han, Jing Xu   +3 more
doaj   +1 more source

One-pot synthesis of nickel encapsulated COF-derived catalyst for highly selective and efficient hydrogenation of cinnamaldehyde

Catalysis Communications, 2023
Since efficient hydrogenation was valued for manufacture of pharmaceutical intermediates and fragrances in recent years, the development of easily accessible heterogeneous catalysts was preferably made.
Nan Wang, Jianguo Liu, Xinjun Li, Chenguang Wang, Longlong Ma   +4 more
doaj   +1 more source

Facile synthesis of N-doped graphene encapsulated Ni@N/C catalyst and its catalysis for highly selective semi-hydrogenation of alkynes

Green Chemical Engineering, 2022
Although precious transition metals such as palladium, platinum, and iridium are widely used in hydrogenation reactions, the earth-abundant transition metal-catalyzed highly selective semi-hydrogenation of terminal alkynes to terminal alkenes remains ...
Jianguo Liu, Jiangmin Sun, Thishana Singh, Shanshan Lin, Longlong Ma   +4 more
doaj   +1 more source

Hybrid Pd-Nanoparticles within Polymeric Network in Selective Hydrogenation of Alkynols: Influence of Support Porosity

Molecules, 2022
This work is addressing the selective hydrogenation of alkynols over hybrid catalysts containing Pd-nanoparticles, within newly synthesized hyper-cross-linked polystyrenes (HPS). Alkynols containing C5, C10, and C20 with a terminal triple bond, which are
Linda Z. Nikoshvili, Alexander Y. Popov, Alexey V. Bykov, Alexander I. Sidorov, Lioubov Kiwi-Minsker   +4 more
doaj   +1 more source

Highly Efficient Selective Hydrogenation of Cinnamaldehyde to Cinnamyl Alcohol over CoRe/TiO₂ Catalyst

Molecules, 2023
Allylic alcohols typically produced through selective hydrogenation of α,β-unsaturated aldehydes are important intermediates in fine chemical industry, but it is still a challenge to achieve its high selectivity transformation. Herein, we report a series
Mengting Chen, Yun Wang, Limin Jiang, Yuran Cheng, Yingxin Liu, Zuojun Wei   +5 more
doaj   +1 more source

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, Xian Liu, Tao Lai, Junyuan Li, Guoming Xia, Wennan Zou, Hongming Wang   +6 more
doaj   +1 more source

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, Shuhang Ren, Muge Niu, Weize Wu   +3 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, Yongmeng Wu, Changhong Wang, Ying Gao, Mengyang Li, Bin Zhang, Cuibo Liu   +6 more
doaj   +1 more source