Journal ArticleDOI
Catalyst-free hierarchical reduction of CO2 with BH3N(C2H5)3 for selective N-methylation and N-formylation of amines
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TLDR
An efficient and catalyst-free methodology for N-formylation and N-methylation of various amines using BH3N(C2H5)3 as a reductant and CO2 as C1 source is described.Abstract:
We describe herein an efficient and catalyst-free methodology for N-formylation and N-methylation of various amines using BH3N(C2H5)3 as a reductant and CO2 as C1 source. This system is compatible with a wide range of substrates, such as aromatic secondary amines, aliphatic secondary amines, heterocyclic amines, and primary amines. The desired methylamines and formamides are obtained in excellent yields by changing the reaction solvent, temperature, and the amount of BH3N(C2H5)3. The optimum yields of methylamines and formamides are up to 99 %, which are comparable to the data using different catalysts. Moreover, it has been demonstrated by mechanistic research that CO2 was activated by inserting into B–H bonds of BH3N(C2H5)3 and formamide can be regarded as an intermediate species during the N-methylation formation.read more
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Reductive amination of ketones/aldehydes with amines using BH3N(C2H5)3 as a reductant.
TL;DR: In this article, the first example of efficient reductive amination of ketones/aldehydes with amines using BH3N(C2H5)3 as a catalyst and a reductant under mild conditions was reported.
Journal ArticleDOI
Synthesis of Mesoporous PdxCu1–x/Al2O3-y Bimetallic Catalysts Via Mechanochemistry for Selective N-Formylation of Amines with CO2 and H2
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Recyclable polymerized Lewis acid poly-BPh(C6F5)2 catalyzed selective N-formylation and N-methylation of amines with carbon dioxide and phenylsilanes
TL;DR: In this paper , a boron-centered polymer called poly-BPh(C6F5)2 (polymerized-bis(perfluorophenyl)-(phenyl)borane) was designed and synthesized, which is found to be an efficient catalyst for selective N-formylation and N-methylation of amines using CO2 as C1 building block in the presence of hydrosilanes.
Journal ArticleDOI
Efficient N-formylation of carbon dioxide and amines with alkanolamine as eco-friendly catalyst under mild conditions
TL;DR: In this article , the authors used cheap and readily available alkanolamines as efficient catalysts with phenylsilanes as reducing agents to achieve the N-formylation reaction by constructing C-N bonds via the reaction between CO2 and amines.
Journal ArticleDOI
Single-atom Zn on bipyridine-functionalized porous organic polymers towards highly efficient N-formylation of amines with CO2 under mild conditions
TL;DR: In this paper , a facile and cost-effective method for constructing highly efficient and recyclable single-atom metal catalysts for N-formylation of amines with CO 2 was presented.
References
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Highly active copper-ceria and copper-ceria-titania catalysts for methanol synthesis from co2
Jesús Graciani,Kumudu Mudiyanselage,Fang Xu,Ashleigh E. Baber,Jaime Evans,Sanjaya D. Senanayake,Dario Stacchiola,Ping Liu,Jan Hrbek,Javier Fernández Sanz,José A. Rodriguez +10 more
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The chemistry of dimethyl carbonate.
Pietro Tundo,Maurizio Selva +1 more
TL;DR: DMC possesses properties of nontoxicity and biodegradability which makes it a true green reagent to use in syntheses that prevent pollution at the source and avoiding the formation of undesirable inorganic salts as byproducts.
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A Diagonal Approach to Chemical Recycling of Carbon Dioxide: Organocatalytic Transformation for the Reductive Functionalization of CO2
Christophe Das Neves Gomes,Olivier Jacquet,Claude Villiers,Pierre Thuéry,Michel Ephritikhine,Thibault Cantat +5 more
Journal ArticleDOI
Biobased Amines: From Synthesis to Polymers; Present and Future.
Vincent Froidevaux,Claire Negrell,Sylvain Caillol,Jean-Pierre Pascault,Jean-Pierre Pascault,Bernard Boutevin +5 more
TL;DR: Amines are key intermediates in the chemical industry due to their nucleophilic characteristic which confers a high reactivity to them, and they are key monomers for the synthesis of polyamides, polyureas, polyepoxydes, which are all of growing interest in automotive, aerospace, building, or health applications.