Results 1 to 10 of about 11,788,821 (250)

Visible-light photoredox-catalyzed umpolung carboxylation of carbonyl compounds with CO2

Nature Communications, 2021
Compounds bearing a carbonyl group, such as aldehydes and ketones, are important industrial chemicals and widespread in pharmaceuticals and natural products.
Guang-Mei Cao, Xin-Long Hu, Li-Li Liao, Si-Shun Yan, Lei Song, Jason J. Chruma, Li Gong, Da-Gang Yu   +7 more
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Breaking through water-splitting bottlenecks over carbon nitride with fluorination

Nature Communications, 2022
Graphitic carbon nitride has long been considered a poor oxygen evolution catalyst. Here, the authors report a simple fluorination strategy to prevent the accumulation of inert C=O on carbon nitride to break through this bottleneck.
Ji Wu, Zhonghuan Liu, Xinyu Lin, Enhui Jiang, Shuai Zhang, Pengwei Huo, Yan Yan, Peng Zhou, Yongsheng Yan   +8 more
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Stereodivergent synthesis of vicinal quaternary-quaternary stereocenters and bioactive hyperolactones

Nature Communications, 2018
Stereodivergent construction of adjacent quaternary-quaternary stereocenters remains a formidable synthetic challenge. Here, the authors report a nickel-catalyzed enantioselective dearomatization Claisen rearrangement leading to vicinal all-carbon ...
Haifeng Zheng, Yan Wang, Chaoran Xu, Xi Xu, Lili Lin, Xiaohua Liu, Xiaoming Feng   +6 more
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A Highly Efficient Heterogeneous Catalyst of Bimetal-Organic Frameworks for the Epoxidation of Olefin with H₂O₂

Molecules, 2020
A series of bimetel organic framework MnxCu1−x-MOF were prepared. The MOFs was characterized and analyzed by powder X-ray diffraction (PXRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy
Fei Wang, Xiang-Guang Meng, Yan-Yan Wu, Hong Huang, Jing Lv, Wen-Wang Yu   +5 more
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Modern catalysis in the synthesis of some pharmaceuticals and fine chemicals [PDF]

Hemijska Industrija, 2002
Catalysis in the synthesis of Pharmaceuticals and line chemicals nowadays becomes more and more important. Synthesis that minimizes wastes is important from the economical aspect, as well as from the environmental aspect.
Petrović Slobodan D., Mišić-Vuković Milica M., Mijin Dušan Ž.   +2 more
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Nickel-catalyzed electrochemical carboxylation of unactivated aryl and alkyl halides with CO2

Nature Communications, 2021
Electrochemistry is a promising approach to make existing chemical protocols milder, but many simple transformations of feedstocks are still out of reach.
Guo-Quan Sun, Wei Zhang, Li-Li Liao, Li Li, Zi-Hao Nie, Jin-Gui Wu, Zhen Zhang, Da-Gang Yu   +7 more
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Trends in Integrating Green Chemistry and Sustainability into Chemistry Education

JTK (Jurnal Tadris Kimiya)
The growing urgency of environmental challenges has emphasized the importance of integrating green chemistry and sustainability concepts into chemistry education.
Syifa Ayugea Salsabila, Hernani Hernani
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C3 Selective chalcogenation and fluorination of pyridine using classic Zincke imine intermediates

Nature Communications
Regioselective C–H functionalization of pyridines remains a persistent challenge due to their inherent electronically deficient properties. In this report, we present a strategy for the selective pyridine C3-H thiolation, selenylation, and fluorination ...
Shun Li, Juan Tang, Yonglin Shi, Meixin Yan, Yihua Fu, Zhishan Su, Jiaqi Xu, Weichao Xue, Xueli Zheng, Yicen Ge, Ruixiang Li, Hua Chen, Haiyan Fu   +12 more
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Magnetic COFs as satisfied support for lipase immobilization and recovery to effectively achieve the production of biodiesel by great maintenance of enzyme activity

Biotechnology for Biofuels, 2021
Background Production of biodiesel from renewable sources such as inedible vegetable oils by enzymatic catalysis has been a hotspot but remains a challenge on the efficient use of an enzyme.
Zi-Wen Zhou, Chun-Xian Cai, Xiu Xing, Jun Li, Zu-E. Hu, Zong-Bo Xie, Na Wang, Xiao-Qi Yu   +7 more
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High School Sustainable and Green Chemistry: Historical–Epistemological and Pedagogical Considerations

Sustainable Chemistry, 2023
In this paper, a distinction is first made between environmental, sustainable, and green chemistry; the last two are then examined in relation to the more general problem of environmental education.
Teresa Celestino
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