Video Experimental Relacionado

Updated: May 15, 2025

Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells

Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells

Published on: November 5, 2014

Sinergia cátodo-ánodo Electrosíntesis de propanamida a través de una reacción de acoplamiento C-N bipolar

Ming-Hao Guan¹, Hao-Nan Xu¹, Jin Liu¹

¹State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China.

Journal of the American Chemical Society

|May 2, 2025

Resumen

Los investigadores desarrollaron un método electroquímico ecológico para sintetizar propanamida a partir de nitrato y n-propanol. Este nuevo enfoque utiliza un sistema catodo-ánodo sinérgico, que ofrece una alternativa más ecológica para la formación de enlaces C-N en la producción de productos farmacéuticos intermedios.

Área de la Ciencia:

La electroquímica
Síntesis orgánica
Química ecológica

Sus antecedentes:

La propanamida es un intermediario farmacéutico clave.
Los métodos de síntesis convencionales tienen condiciones difíciles y desventajas ambientales.

Objetivo del estudio:

Desarrollar una síntesis electroquímica de propanamida respetuosa con el medio ambiente.
Utilización de nitrato y n-propanol como precursores en condiciones ambientales.

Principales métodos:

Se empleó una estrategia electroquímica sinérgica cátodo-ánodo.
El óxido de cobalto en el carburo de silicio (Co3O4 / SiC) sirvió como catalizador del cátodo.
El titanio (Ti) se utilizó como catalizador del ánodo.

Principales resultados:

La propanamida se sintetizó eficientemente en condiciones ambientales.
Se logró una alta tasa de producción de 986,13 μmol/cm2·h a 650 mA/cm2.
El proceso demostró la producción a escala de gramos en una célula de flujo.

Conclusiones:

El sistema electroquímico sinérgico ofrece una ruta eficiente y ecológica para la síntesis de propanamida.
Este método proporciona una nueva opción para la síntesis de enlaces C-N.
Los conocimientos obtenidos pueden aplicarse a la electrosíntesis de otras amidas.

Más Videos Relacionados

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes

Published on: April 1, 2013

Synthesis of Antiviral Tetrahydrocarbazole Derivatives by Photochemical and Acid-catalyzed C-H Functionalization via Intermediate Peroxides CHIPS

Synthesis of Antiviral Tetrahydrocarbazole Derivatives by Photochemical and Acid-catalyzed C-H Functionalization via Intermediate Peroxides CHIPS

Published on: June 20, 2014

Videos de Conceptos Relacionados

Preparation of 1° Amines: Gabriel Synthesis

Preparation of 1° Amines: Gabriel Synthesis

Direct alkylation is not a suitable method for synthesizing amines because it produces polyalkylated products. Gabriel synthesis is the most preferred method to exclusively make primary amines. The method uses phthalimide, which contains a protected form of nitrogen that participates in alkylation only once to predominantly give primary amines.
Strong bases like NaOH or KOH deprotonate the phthalimide to form the corresponding anion, which acts as a nucleophile. Further, the anion attacks an...

Aldehydes and Ketones with HCN: Cyanohydrin Formation Mechanism

Aldehydes and Ketones with HCN: Cyanohydrin Formation Mechanism

Cyanohydrins are formed when cyanide nucleophiles and carbonyl compounds like aldehydes and ketones react. A strong base, the cyanide ion, catalyzes cyanohydrin formation. The ions are generated from HCN under aqueous conditions. Once the cyanide ions are generated, the first step involves the nucleophilic attack of the cyanide ions on the electrophilic carbonyl carbon. This attack shifts the π electrons from the C=O to the oxygen atom forming the alkoxide ion intermediate. The...

Electrophilic Aromatic Substitution: Nitration of Benzene

Electrophilic Aromatic Substitution: Nitration of Benzene

The nitration of benzene is an example of an electrophilic aromatic substitution reaction. It involves the formation of a very powerful electrophile, the nitronium ion, which is linear in shape. The reaction occurs through the interaction of two strong acids, sulfuric and nitric acid.

Preparation of Amines: Reductive Amination of Aldehydes and Ketones

Preparation of Amines: Reductive Amination of Aldehydes and Ketones

Carbonyl compounds and primary amines undergo reductive amination first to produce imines, followed by secondary amines in the same reaction mixture, using selective reducing agents like sodium cyanoborohydride or sodium triacetoxyborohydride. Reductive amination produces different degrees of substitution of amines depending on the starting amine substrate.

Preparation of Nitriles

Preparation of Nitriles

One of the common methods to prepare nitriles is the dehydration of amides. This method requires strong dehydrating agents like phosphorous pentoxide or boiling acetic anhydride for converting amides to nitriles. Another reagent namely, thionyl chloride also accomplishes the dehydration of amides, where amide acts as a nucleophile. The first step of the mechanism involves the nucleophilic attack by the amide on the thionyl chloride to form an intermediate. In the next step, the electron pairs...

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the...