CeO<sub>2</sub> nanorods anchored on mesoporous carbon as an efficient catalyst for imine synthesis
作者:Longlong Geng、Jinling Song、Yahui Zhou、Yan Xie、Jiahui Huang、Wenxiang Zhang、Luming Peng、Gang Liu
DOI:10.1039/c6cc05496j
日期:——
CeO2 nanorods anchored on mesoporous carbon exhibit high activity and stability in aerobic oxidative coupling of alcohol and amine to imine. The abundant surface Ce3+ and the suitable interaction between...
H2-Generation from Alcohols by the MOF-Based Noble Metal-Free Photocatalyst Ni/CdS/TiO2@MIL-101
作者:Dominic Tilgner、Mara Klarner、Sebastian Hammon、Martin Friedrich、Andreas Verch、Niels de Jonge、Stephan Kümmel、Rhett Kempe
DOI:10.1071/ch19255
日期:——
utilisation of visiblelight for the activation of alcohols permits alcohol-based C–N and C–C bond formation undermildconditions inaccessible with thermally operating hydrogen liberation catalysts. Herein, we report on a noble metal-free photocatalyst able to split alcohols into hydrogen and carbonyl compounds under inert gas atmosphere without the requirement of electron donors, additives, or aqueous
从酒精中合成重要类别的化学化合物有助于节省地球上的化石碳资源,因为可以从不可消化且可大量利用的生物质中获得酒精。利用可见光激活醇,可以在温和条件下通过热操作氢释放催化剂无法获得基于醇的C–N和C–C键。本文中,我们报道了一种无贵金属的光催化剂,该催化剂能够在惰性气体气氛下将醇分解为氢和羰基化合物,而无需电子给体,添加剂或水性反应介质。可重复使用的光催化剂利用醇类的氧化作用以及随后与胺的偶联作用介导CN多重键的形成。光催化剂由CdS / TiO 2组成 异质结装饰有助催化Ni纳米粒子,并在尺寸优化的胶体金属有机骨架(MOF)晶体上制备。
Crystal phase effect of iron oxides on the aerobic oxidative coupling of alcohols and amines under mild conditions: A combined experimental and theoretical study
作者:Longlong Geng、Wei Jian、Pei Jing、Wenxiang Zhang、Wenfu Yan、Fu-Quan Bai、Gang Liu
DOI:10.1016/j.jcat.2019.06.018
日期:2019.9
catalytic oxidation on the crystal phases of iron oxides, we find that naked γ-Fe2O3particles exhibit excellent catalytic activity, selectivity, and stability in a series of imine synthetic reactions. The performance of γ-Fe2O3particles is significantly better than that of α-Fe2O3 and Fe3O4 under mild reaction conditions, and the γ-Fe2O3 catalyst can be separated from the reaction mixture magnetically. Both
Magnetic NiO nanoparticles confined within open ends MWCNTs: a novel and highly active catalyst for hydrogenation and synthesis of imines
作者:Gangquan Chen、Wenbin Gao、Xuejun Wang、Hongfei Huo、Wenzhu Li、Le Zhang、Rong Li、Zuixiong Li
DOI:10.1039/c6ra05561c
日期:——
The novel catalyst is highly active for hydrogenation and synthesis of imines.
这种新型催化剂对氢化和亚胺的合成具有高度活性。
Catalyst- and Solvent-Free Synthesis of α-Amino Polyfluoroalkylphosphonates from Bis(fluoroalkyl) Phosphonates and Aldimines
作者:Boris A. Trofimov、Svetlana N. Arbuzova、Nina K. Gusarova、Tatyana I. Kazantseva、Svetlana I. Verkhoturova、Sergey V. Zinchenko、Nikita A. Kolyvanov
DOI:10.1055/s-0039-1691599
日期:2020.5
The catalyst- and solvent-free reaction between bis(fluoroalkyl) phosphonates and aldimines occurs under mild conditions (20–22 °C, 0.25–4 h) to afford a new family of α-amino polyfluoroalkylphosphonates in up to quantitative yields.