Video Experimental Relacionado

Updated: Jul 9, 2026

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

Un nuevo enfoque sintético para los derivados del fenol: el uso de la metátesis de olefinas de cierre de anillo

Kazuhiro Yoshida¹, Tsuneo Imamoto

¹Department of Chemistry, Faculty of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan. kyoshida@faculty.chiba-u.jp

Journal of the American Chemical Society

|July 28, 2005

Resumen

La metátesis de olefinas de cierre de anillo catalizada por rutenio sintetiza de manera eficiente los versátiles derivados del fenol de los precursores de la trienona. Este nuevo método proporciona acceso a complejas estructuras de fenol que no se pueden obtener a través de las técnicas tradicionales de química orgánica.

Área de la Ciencia:

Química orgánica es la química orgánica.
La catálisis de la catálisis.
Metodología sintética de la metodología sintética.

Sus antecedentes:

Los derivados del fenol son compuestos aromáticos cruciales en la química orgánica.
La síntesis convencional de ciertos fenoles puede ser desafiante e ineficiente.

Objetivo del estudio:

Desarrollar una nueva ruta sintética para los derivados del fenol utilizando la metátesis de olefinas de cierre de anillo catalizada por rutenio (RCM).
Para explorar la versatilidad de RCM con diferentes precursores de trienona para la síntesis de fenol.

Principales métodos:

Síntesis de derivados del fenol a través de RCM catalizado por rutenio.
Utilizando el 1,4,7-trien-3-ones y el 1,5,7-trien-3-one como precursores.
Investigando reacciones con patrones de sustitución versátiles.

Principales resultados:

Síntesis exitosa de diversos derivados del fenol a través de RCM.
Se ha demostrado la eficacia de los precursores 1,4,7-trien-3-one y 1,5,7-trien-3-one.
Fenolos obtenidos que son difíciles de sintetizar utilizando métodos convencionales.

Conclusiones:

El RCM catalizado por rutenio es una herramienta poderosa para sintetizar complejos derivados del fenol.
Esta metodología ofrece una vía alternativa y efectiva a los valiosos compuestos aromáticos.
El método desarrollado amplía la accesibilidad de fenoles previamente difíciles de obtener.

Más Videos Relacionados

Utilization of Stop-flow Micro-tubing Reactors for the Development of Organic Transformations

Utilization of Stop-flow Micro-tubing Reactors for the Development of Organic Transformations

Published on: January 4, 2018

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy

Versatile CO₂ Transformations into Complex Products: A One-pot Two-step Strategy

Published on: November 9, 2019

Videos de Conceptos Relacionados

Preparation of Alkynes: Alkylation Reaction

Preparation of Alkynes: Alkylation Reaction

Introduction
Alkylation of terminal alkynes with primary alkyl halides in the presence of a strong base like sodium amide is one of the common methods for the synthesis of longer carbon-chain alkynes. For example, treatment of 1-propyne with sodium amide followed by reaction with ethyl bromide yields 2-pentyne.

Preparation of Alkynes: Dehydrohalogenation

Preparation of Alkynes: Dehydrohalogenation

Introduction
Alkynes can be prepared by dehydrohalogenation of vicinal or geminal dihalides in the presence of a strong base like sodium amide in liquid ammonia. The reaction proceeds with the loss of two equivalents of hydrogen halide (HX) via two successive E2 elimination reactions.

Cycloaddition Reactions: Overview

Cycloaddition Reactions: Overview

Cycloadditions are one of the most valuable and effective synthesis routes to form cyclic compounds. These are concerted pericyclic reactions between two unsaturated compounds resulting in a cyclic product with two new σ bonds formed at the expense of π bonds. The [4 + 2] cycloaddition, known as the Diels–Alder reaction, is the most common. The other example is a [2 + 2] cycloaddition.

Olefin Metathesis Polymerization: Overview

Olefin Metathesis Polymerization: Overview

Recently, the development of olefin metathesis polymerization advanced the field of polymer synthesis. Simply put, the reorganization of substituents on their double bonds between two olefins in the presence of a catalyst is known as the olefin metathesis reaction. The use of metathesis reaction for polymer synthesis is called olefin metathesis polymerization.
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists of a...

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)

Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...