相关实验视频
Updated: Sep 8, 2025

11:51
Facile Preparation of 4-Substituted Quinazoline Derivatives
Published on: February 15, 2016
12.0K
基质促进的无过渡金属合成具有抗氧化活性的奇纳索林
Maruboina Hemanth Kumar1, Harini G Sampatkumar1, Sanjana S Talekar1
1Centre for Nano and Material Sciences, Jain (Deemed-to-be University), Jain Global Campus, Kanakapura, Bangalore, Karnataka, 562112, India. p.siddappa@jainuniversity.ac.in.
Organic & biomolecular chemistry
|July 11, 2025
概括
这项研究提出了一种新的,无金属的方法,用于合成使用聚乙烯糖醇200 (PEG-200) 的quinazolinones. 开发的协议产生了具有显著抗氧化特性的生物活性化合物,通过DPPH基因清除试验确定了这些化合物.
科学领域:
- 有机化学 有机化学
- 药用化学 医学化学
- 绿色化学 绿色化学
背景情况:
- 基纳索林是具有多种生物活性的重要类别的异环化合物.
- 为quinazolinones开发高效和环保的合成方法至关重要.
研究的目的:
- 为了建立一个无过渡金属的基质促进的 quinazolinone 合成协议.
- 为了探索合成的quinazolinone衍生物的抗氧化潜力.
- 用计算方法阐明反应机制.
主要方法:
- 合成使用聚乙烯糖醇200 (PEG-200) 作为反应介质的quinazolinones.
- 使用DPPH激素清除试验对抗氧化剂活性的评估.
- 密度函数理论 (DFT) 计算用于机械洞察力.
主要成果:
- 在温和条件下合成了多种多样的quinazolinone支架,产生了良好的产量.
- 一些合成的quinazolinones表现出显著的抗氧化活性.
- (4-(trifluoromethyl) phenyl)quinazolin-4(3H) -one和6-chloro-2-phenylquinazolin-4(3H) -one显示出最高的抗氧化活性,其IC50值分别为45.10和57.97微克毫升-1.
- DFT计算提供了对反应路径的机械学理解.
结论:
- 开发的协议提供了一种简单,高效和绿色的合成途径,以获得有价值的quinazolinone衍生物.
- 该研究确定了有前途的化合物,具有显著的抗氧化特性,可用于未来的药物开发.
- 这项工作有助于在quinazolinone合成和应用方面的潜在制造创新.
相关概念视频
Oxidation of Phenols to Quinones
3.4K
In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
3.4K
Radical Chain-Growth Polymerization: Overview
2.7K
Chain-growth or addition polymerization is successive addition reactions of monomers with a polymer chain. In radical chain-growth polymerization, the reaction proceeds via a free-radical intermediate. The free radical is formed from radical initiators, which spontaneously generate free radicals by homolytic fission. Organic peroxides (such as dibenzoyl peroxide, as shown in Figure 1) or azo compounds are popular radical initiators. A low concentration ratio of radical initiator to monomer is...
2.7K

![Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F60786.jpg&w=3840&q=50)