Amine formylation with CO2 and H2 catalyzed by heterogeneous Pd/PAL catalyst
نویسندگان
چکیده
منابع مشابه
Amine formylation via carbon dioxide recycling catalyzed by a simple and efficient heterogeneous palladium catalyst.
A simple and efficient Pd/Al2O3-NR-RD catalyst was prepared by depositing palladium on a shape controllable Al2O3-NR support through a two-step process that involves hydrothermal synthesis of Al2O3-NRs followed by reductive-deposition of palladium. This catalyst showed high activity in the catalytic formylation of amines by CO2-H2 under mild conditions with up to 96% yield.
متن کاملN-Methylation of amine and nitro compounds with CO2/H2 catalyzed by Pd/CuZrO(x) under mild reaction conditions.
An active Pd/ZrCuOx catalyst was prepared for the reductive amination of CO2. The N-methylation of amines and nitro compounds with CO2/H2 can be realized with up to 97% yield under relatively mild reaction conditions. N-Formylation becomes the main reaction if the reaction was performed under milder conditions or using Pd/ZnZrOx as the catalyst.
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DFT computations have been performed to gain insight into the mechanisms of formylation/methylation of amines (e.g. methylaniline (1a)/2,2,4,4-tetramethylpiperidine (2a)) with CO2 and hydrosilane ([Si]H2, [Si] 1⁄4 Ph2Si), catalyzed by 1,3,2-diazaphospholene ([NHP]H). Different from the generally proposed sequential mechanism for the methylation of amine with CO2, i.e. methylation proceeds via f...
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A simple, efficient, and cost-effective procedure for the N-tert-butoxycarbonylation and N-formylation of amines (primary, secondary) respectively, with di-tert-butyl dicarbonate and 85% aqueous formic acid under solvent-free condition using B(OSO3H)3/SiO2 (SBSA) as a heterogeneous and recyclable catalyst has been developed. We demonstrated that the resulting catalyst is applicable to various a...
متن کاملHeterogeneous UV/Fenton degradation of TBBPA catalyzed by titanomagnetite: catalyst characterization, performance and degradation products.
Tetrabromobisphenol A (TBBPA), a widely used brominated flame retardant, could negatively affect various aspects of mammalian and human physiology, which triggers effective techniques for its removal. In this work, the degradation characteristics of TBBPA in heterogeneous UV/Fenton reaction catalyzed by titanomagnetite (Fe(3-x)Ti(x)O₄) were studied. Batch tests were conducted to evaluate the ef...
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ژورنال
عنوان ژورنال: Chinese Journal of Catalysis
سال: 2019
ISSN: 1872-2067
DOI: 10.1016/s1872-2067(19)63397-8