Video Experimental Relacionado

Updated: Aug 22, 2025

Light-driven Enzymatic Decarboxylation

Light-driven Enzymatic Decarboxylation

Published on: May 22, 2016

Oxidación por reducción: Oxidación eficiente y selectiva de los alcoholes por la reducción electrocatalítica del

Seyyedamirhossein Hosseini¹, Jordyn N Janusz¹, Mayank Tanwar^2,3

¹Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah84112, United States.

Journal of the American Chemical Society

|November 8, 2022

Resumen

Este estudio introduce la oxidación reductora, un método electroquímico para la oxidación del alcohol en condiciones suaves. Utiliza la reducción electrocatalítica para generar radicales sulfatados, logrando altos rendimientos de aldehídos, cetonas y ácidos carboxílicos.

Área de la Ciencia:

La electroquímica
Síntesis orgánica
Catálisis

Sus antecedentes:

La oxidación tradicional del alcohol a menudo requiere condiciones duras y catalizadores organometálicos.
El desarrollo de métodos de oxidación más suaves y eficientes es crucial para la química sostenible.

Objetivo del estudio:

Introducir un nuevo método electroquímico para la oxidación del alcohol.
Para lograr la oxidación selectiva de los alcoholes a aldehídos, cetonas y ácidos carboxílicos en condiciones suaves.

Principales métodos:

Oxidación reductora electroquímica mediante el uso de peroxidodisulfato.
Los primeros cálculos de la teoría funcional de la densidad.
Simulaciones de dinámica molecular, voltametría cíclica y simulaciones de diferencias finitas.

Principales resultados:

Demostró un proceso de reducción electroquímica contraintuitivo que impulsa la oxidación del alcohol.
Se logra la oxidación selectiva de los alcoholes a aldehídos, cetonas y ácidos carboxílicos.
Se ha informado de rendimientos de conversión de hasta el 99% en condiciones suaves.

Conclusiones:

La oxidación reductora ofrece una vía sintética selectiva y leve para la oxidación del alcohol.
El enfoque electroquímico evita la necesidad de reactivos agresivos y catalizadores de metales de transición.
Los datos computacionales y experimentales apoyan el mecanismo propuesto para la oxidación del alcohol mediada por radicales sulfatados.

Más Videos Relacionados

Separation of Aldehydes and Reactive Ketones from Mixtures Using a Bisulfite Extraction Protocol

Separation of Aldehydes and Reactive Ketones from Mixtures Using a Bisulfite Extraction Protocol

Published on: April 2, 2018

Simultaneous Multi-surface Anodizations and Stair-like Reverse Biases Detachment of Anodic Aluminum Oxides in Sulfuric and Oxalic Acid Electrolyte

Simultaneous Multi-surface Anodizations and Stair-like Reverse Biases Detachment of Anodic Aluminum Oxides in Sulfuric and Oxalic Acid Electrolyte

Published on: October 5, 2017

Videos de Conceptos Relacionados

Oxidation of Alcohols

Oxidation of Alcohols

In this lesson, the oxidation of alcohols is discussed in depth. The various reagents used for oxidation of primary and secondary alcohols are detailed, and their mechanism of action is provided.
The process of oxidation in a chemical reaction is observed in any of the three forms:

Radical Oxidation of Allylic and Benzylic Alcohols

Radical Oxidation of Allylic and Benzylic Alcohols

Activated manganese(IV) oxide can selectively oxidize allylic and benzylic alcohols via a radical intermediate mechanism. Primary allylic alcohols are oxidized to aldehydes, while secondary allylic alcohols yield ketones. The redox reaction of potassium permanganate with an Mn(II) salt such as manganese sulfate (under either alkaline or acidic conditions), followed by thorough drying, yields the oxidizing agent: activated MnO2. While MnO2 is insoluble in the solvents used for the reaction, the...

Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide

Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide

Alkenes are converted to 1,2-diols or glycols through a process called dihydroxylation. It involves the addition of two hydroxyl groups across the double bond with two different stereochemical approaches, namely anti and syn. Dihydroxylation using osmium tetroxide progresses with syn stereochemistry.

Alcohols from Carbonyl Compounds: Reduction

Alcohols from Carbonyl Compounds: Reduction

Reduction is a simple strategy to convert a carbonyl group to a hydroxyl group. The three major pathways to reduce carbonyls to alcohols are catalytic hydrogenation, hydride reduction, and borane reduction.
Catalytic hydrogenation is similar to the reduction of an alkene or alkyne by adding H2 across the pi bond in the presence of transition metal catalysts like Raney Ni, Pd–C, Pt, or Ru. Aldehydes and ketones can be reduced by this method, often under mild to moderate heat (25–100°C) and...

Oxidation of Alkenes: Anti Dihydroxylation with Peroxy Acids

Oxidation of Alkenes: Anti Dihydroxylation with Peroxy Acids

Diols are compounds with two hydroxyl groups. In addition to syn dihydroxylation, diols can also be synthesized through the process of anti dihydroxylation. The process involves treating an alkene with a peroxycarboxylic acid to form an epoxide. Epoxides are highly strained three-membered rings with oxygen and two carbons occupying the corners of an equilateral triangle. This step is followed by ring-opening of the epoxide in the presence of an aqueous acid to give a trans diol.

Hydroboration-Oxidation of Alkenes

Hydroboration-Oxidation of Alkenes

In addition to the oxymercuration–demercuration method, which converts the alkenes to alcohols with Markovnikov orientation, a complementary hydroboration-oxidation method yields the anti-Markovnikov product. The hydroboration reaction, discovered in 1959 by H.C. Brown, involves the addition of a B–H bond of borane to an alkene giving an organoborane intermediate. The oxidation of this intermediate with basic hydrogen peroxide forms an alcohol.