相关实验视频

Updated: Jun 29, 2025

Highly Stereoselective Synthesis of 1,6-Ketoesters Mediated by Ionic Liquids: A Three-component Reaction Enabling Rapid Access to a New Class of Low Molecular Weight Gelators

Highly Stereoselective Synthesis of 1,6-Ketoesters Mediated by Ionic Liquids: A Three-component Reaction Enabling Rapid Access to a New Class of Low Molecular Weight Gelators

Published on: November 27, 2015

使用离子液体催化剂的多组分合成的螺旋[-2,3'-英多林]-3-碳酸盐衍生物

Mehdi Khalaj¹, Maryam Zarandi¹, Malihe Samadi Kazemi²

¹Department of Chemistry, Buinzahra Branch, Islamic Azad University, Buinzahra 1477893855, Iran.

Molecules (Basel, Switzerland)

|March 28, 2024

概括

两种Brønsted酸性离子液有效催化了使用超声波照射合成spiro[furan-2,3′-indoline]-3-carboxylate衍生物. 与传统的布伦斯特酸催化剂相比,这种方法显著提高了产量.

科学领域:

有机化学有机化学
催化剂是一种催化剂.
绿色化学绿色化学

背景情况:

离子液体以其在有机合成中的催化潜力而闻名.
开发高效和环保的合成方法对于可持续化学至关重要.
螺旋[-2,3′-印林]-3-碳酸盐衍生物具有显著的生物活性.

研究的目的:

使用新型布伦斯特酸离子液合成spiro[furan-2,3′-indoline]-3-carboxylate衍生物.
调查超声波照射在加速反应中的有效性.
将离子液体的催化性能与传统的酸催化剂进行比较.

主要方法:

一种三组分反应,涉及氨酸,伊沙和乙烯基碳酸盐.
使用两种特定的Bronsted酸性离子液体进行催化:3,3'-(1,6-hexanediyl) bis(1-methyl)-1H-imidazolium硫酸 (Cat1) 和 1,1'-(1,6-hexanediyl) bis(pyridinium) 硫酸 (Cat2).
应用超声波 (US) 辐射来提高反应速率和产量.

主要成果:

获得了高产量 (80%98%) 的spiro[furan-2,3′-indoline]-3-carboxylate衍生物 (1a15a).
与硫酸和酸相比,离子液体催化剂的性能优于硫酸和酸.
超声波照射显著减少了反应时间,提高了产品产量.

结论:

布伦斯特酸性离子液体 (Cat1和Cat2) 是合成spiro[furan-2,3′-indoline]-3-carboxylate衍生物的有效催化剂.
使用超声波照射与这些离子液体一起,提供了一种绿色和高效的合成策略.
这种方法为这种类型的化合物提供了传统酸催化剂的有希望的替代方案.

关键词:

但是烯化物是什么?硫酸 (imidazolium) 硫酸是一种离子液体催化剂是离子液体催化剂.硫酸二氧化二氧化的硫酸.螺旋化合物是螺旋化合物中的一种.螺旋[-2,3′-英多林]-3-碳酸盐衍生物的衍生物.

更多相关视频

Efficient Construction of Drug-like Bispirocyclic Scaffolds Via Organocatalytic Cycloadditions of α-Imino γ-Lactones and Alkylidene Pyrazolones

Efficient Construction of Drug-like Bispirocyclic Scaffolds Via Organocatalytic Cycloadditions of α-Imino γ-Lactones and Alkylidene Pyrazolones

Published on: February 7, 2019

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

相关概念视频

[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction

[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction

The Diels–Alder reaction is an example of a thermal pericyclic reaction between a conjugated diene and an alkene or alkyne, commonly referred to as a dienophile. The reaction involves a concerted movement of six π electrons, four from the diene and two from the dienophile, forming an unsaturated six-membered ring. As a result, these reactions are classified as [4+2] cycloadditions.

Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene

Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene

Bromination and chlorination of aromatic rings by electrophilic aromatic substitution reactions are easily achieved, but fluorination and iodination are difficult to achieve. Fluorine is so reactive that its reaction with benzene is difficult to control, resulting in poor yields of monofluoroaromatic products. To address this, Selectfluor reagent is used as a fluorine source in which a fluorine atom is bonded to a positively charged nitrogen.