One-Pot Synthesis of N-Arylated Amines by Hydroaminomethylation of 2,5-Dihydrofuran with Aromatic Amines
作者:Lailai Wang、Zhiwen Zheng
DOI:10.1055/s-0037-1610681
日期:2019.4
of aniline and various cyclic olefins is investigated under the optimal conditions, and excellent conversion and good yields are obtained. A new efficient catalytic system for one-step synthesis of N-arylated amines, for example, an important intermediate, 4-ethyl-N-[(tetrahydrofuran-3-yl)methyl]aniline, is achieved by using different rhodium precursor and phosphorus ligands catalyzed hydroaminomethylation
Highly Efficient and Selective N-Alkylation of Amines with Alcohols Catalyzed by in Situ Rehydrated Titanium Hydroxide
作者:Feng Niu、Qiyan Wang、Zhen Yan、Bright T. Kusema、Andrei Y. Khodakov、Vitaly V. Ordomsky
DOI:10.1021/acscatal.9b05525
日期:2020.3.6
Catalytic N-alkylation of amines by alcohols to produce desired amines is an important catalytic reaction in industry. Various noble-metal-based homogeneous and heterogeneous catalysts have been reported for this process. The development of cheap non-noble-metal heterogeneous catalysts for the N-alkylation reaction would be highly desirable. Hereby, we propose the N-alkylation of amines by alcohols over
This invention discloses the antianxiety properties of compounds of the formula: ##STR1## wherein n is 3 or 4, R is C.sub.1 -C.sub.4 alkyl or phenyl, and Ar is ##STR2## where Z is selected from H, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkenyloxy or hydroxy.
Conversion of furfural to tetrahydrofuran-derived secondary amines under mild conditions
作者:Shi Jiang、Eric Muller、François Jerôme、Marc Pera-Titus、Karine De Oliveira Vigier
DOI:10.1039/d0gc00119h
日期:——
production of amino-containing compounds from biomass is an important goal of research programs. Starting from carbohydrate-based furfural, a simple and highly efficient system was developed for producing a library of secondary and tertiary tetrahydrofurfurylamines undermildconditions (25 °C/1 bar H2) with excellent yields (>90%). Commercially available Pd/Al2O3 proved to be a suitable catalyst and exhibited
由生物质生产含氨基化合物是研究计划的重要目标。从基于碳水化合物的糠醛开始,开发了一种简单高效的系统,可在温和条件下(25°C / 1 bar H 2)以优异的收率(> 90%)生产仲和叔四氢糠胺库。市场上可买到的Pd / Al 2 O 3被证明是合适的催化剂,并表现出出色的性能。
Synthesis of a hybrid Pd0/Pd-carbide/carbon catalyst material with high selectivity for hydrogenation reactions
作者:Andrea Garcia-Ortiz、Juan Diego Vidal、Sara Iborra、Maria José Climent、Jorge Cored、Daniel Ruano、Virginia Pérez-Dieste、Patricia Concepción、Avelino Corma
DOI:10.1016/j.jcat.2020.06.036
日期:2020.9
We present a highly selective and active Pd carbon catalyst prepared by an easy hydrothermal synthesis method. This synthetic procedure allows the stabilization under mild conditions of interstitialcarbon atoms on the surface of a Pd0 carbon catalyst. The so formed Pd carbide phase appears on the upper surface layers of the Pd carbon catalyst, as demonstrated by X-ray photoelectron depth profile analysis