炭酸衍生物在除草剂开发中的作用
Hui Cai1, Xiuhai Gan1, Zhichao Jin1
1National Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, People's Republic of China.
Journal of agricultural and food chemistry
|June 20, 2023
概括
碳酸除草剂在农业中至关重要,准各种生物途径. 本综述总结了它们在20年中的发展,重点是设计新的除草剂的结构性质和机制.
科学领域:
- 农业化学 农业化学
- 有机化学 有机化学
- 植物科学 植物科学
背景情况:
- 碳氧酸及其衍生物在生物活性化合物中普遍存在.
- 这些化合物在过去的70年里对除草剂的发展做出了重大贡献.
- 碳氧酸相关的除草剂针对各种生物过程,包括生物合成途径和酶.
研究的目的:
- 审查过去20年中含有碳基的除草剂和除草剂分子的发展情况.
- 分析这些化合物的结构性质和除草剂机制.
- 为设计和开发新型除草剂结构提供见解.
主要方法:
- 文献评论专注于过去20年的科学出版物.
- 分析碳酸相关除草剂的结构特征.
- 基于除草剂机制和向生物通路的分类.
主要成果:
- 识别各种除草剂目标,包括代谢途径,蛋白质和酶.
- 结构特征与特定除草剂机制之间的相关性.
- 概述基于碳氧酸的除草剂设计的演变.
结论:
- 碳酸衍生物代表了具有广泛应用的关键类除草剂.
- 了解结构-活性关系和机制是未来除草剂发现的关键.
- 持续在这一领域的研究对于可持续的杂草管理策略至关重要.
相关概念视频
01:15Carboxylic Acid Derivatives: Overview
3.8K
Carboxylic acid derivatives are formed by replacing the hydroxyl group of carboxylic acids with a different functional group. The most common carboxylic acid derivatives are:
3.8K
01:25Acidity and Basicity of Carboxylic Acid Derivatives
3.5K
Carboxylic acids are the strongest among organic acids, as they readily lose the hydroxyl proton to form a resonance-stabilized carboxylate ion. In comparison, the acid derivatives lack acidic hydrogens directly attached to a functional group. In these compounds, the acidic nature arises from their ability to lose α hydrogens, making them weakly acidic.
The relative acidic strength of the derivatives can be explained based on the extent of resonance stabilization of the conjugate base. The...
The relative acidic strength of the derivatives can be explained based on the extent of resonance stabilization of the conjugate base. The...
3.5K
01:13Relative Reactivity of Carboxylic Acid Derivatives
2.8K
Carboxylic acid derivatives such as acid halides, anhydrides, esters, and amides undergo nucleophilic acyl substitution reactions with varying degrees of reactivity.
A key factor in assessing the reactivity of the acid derivatives is the basicity of the substituent or the leaving group. The lower the basicity of the leaving group, the higher the reactivity of the derivative. The basicity of the leaving group follows this order:
Halide ions < Acyloxy ions < Alkoxy ions < Amine ions
A key factor in assessing the reactivity of the acid derivatives is the basicity of the substituent or the leaving group. The lower the basicity of the leaving group, the higher the reactivity of the derivative. The basicity of the leaving group follows this order:
Halide ions < Acyloxy ions < Alkoxy ions < Amine ions
2.8K
01:14α-Halogenation of Carboxylic Acid Derivatives: Overview
3.5K
Unlike aldehydes and ketones, carboxylic acids do not readily participate in α halogenation reactions via enols or enolate intermediates. However, α-halogenated acids are obtained through other methods. One of the approaches is the Hell–Volhard–Zelinsky (HVZ) reaction, wherein the carboxylic acid is treated with halogen in the presence of PBr3. It involves the conversion of acid to acid halide, which exists in equilibrium with its enol form. The enol attacks the...
3.5K
01:15Nucleophilic Acyl Substitution of Carboxylic Acid Derivatives
3.4K
Nucleophilic acyl substitution is an important class of substitution reactions involving a nucleophile and an acyl compound, such as carboxylic acids and their derivatives. In these reactions, the leaving group attached to the acyl group is substituted by a nucleophile. The general mechanism proceeds via two steps.
3.4K
01:41Reactions of Carboxylic Acids: Introduction
3.1K
Carboxylic acids possess an acidic –COOH functional group. The acidity can be attributed to the resonance stabilization of their conjugate base, wherein the negative charge is delocalized over both oxygen atoms.
3.1K