![[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F59739.jpg&w=3840&q=50)
催化高选择性基的C-C合从碳酸与光电氧催化剂的碳酸
Bo Ling1, Shunruo Yao1, Shengmao Ouyang1
1State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.
Angewandte Chemie (International ed. in English)
|May 24, 2024
概括
这项研究引入了一种新的选择性激素交叉合方法,使用易于获得的碳酸酸. 这种方法克服了统计学上的局限性,能够有效合成各种和C3sp3-C3sp3键.
科学领域:
- 有机化学 有机化学
- 催化剂是一种催化剂.
- 合成方法论 合成方法论
背景情况:
- 控制激进交叉合反应是具有挑战性的,因为统计产品的形成,往往产生不必要的同质合产品.
- 现有的方法,如持久激素效应 (PRE),需要特定的激素前体,限制基质范围.
研究的目的:
- 开发一种高度选择性的方法来交叉合基和基基,以及基与其他基的基.
- 使用可访问的起始材料,如碳酸酸,构建C(sp2) -C(sp3) 和C(sp3) -C(sp3) 键.
主要方法:
- 利用随时可用的碳酸和它们的衍生物 (NHPI Ester) 作为激素前体.
- 采用三酸连接体 (2,2':6',2''-特皮里丁) 促进一个Ni介导的有机金属机制,以实现激素交叉合.
- 研究的双双脱碳化C ((sp3) -C ((sp3) 合.
主要成果:
- 实现了基与基的高度选择性交叉合,以形成高达90%的基.
- 成功演示了一种新的协议,用于挑战双重脱碳化C ((sp3) -C ((sp3) 合.
- 通过自然产品和药物的后期功能化,展示了广泛的实用性和功能组耐受性.
结论:
- 开发了一种用于选择性激素交叉合的简单灵活的协议,克服了以前的局限性.
- 介导的有机金属机制能够有效地构建C-sp2-C-sp3和C-sp3-C-sp3键.
- 这种方法为合成多种类型的子和功能化复杂分子提供了有价值的新工具.
更多相关视频
相关概念视频
01:27Vicinal Diols via Reductive Coupling of Aldehydes or Ketones: Pinacol Coupling Overview
1.7K
Wilhelm Rudolph Fittig discovered the pinacol coupling reaction in 1859. It is a radical dimerization reaction and involves the reductive coupling of aldehydes or ketones in the presence of hydrocarbon solvent to yield vicinal diols.
1.7K
01:22Alkenes via Reductive Coupling of Aldehydes or Ketones: McMurry Reaction
1.9K
The radical dimerization of ketones or aldehydes gives vicinal diols through a pinacol coupling reaction. However, the behavior of titanium metals used for the reaction as a source of electrons is unusual. When the reaction is carried out in the presence of titanium, diols can be isolated at low temperatures. Else titanium further reacts with diols, forming alkenes through the McMurry reaction.
1.9K
01:16Radical Reactivity: Nucleophilic Radicals
2.1K
Radicals adjacent to electron-donating groups are called nucleophilic radicals. These radicals readily react with electrophilic alkenes. The SOMO–LUMO interactions are the driving force for the reaction, where the high-energy SOMO of the electron-rich, nucleophilic radicals interacts with the low-energy LUMO of the electron-deficient, electrophilic alkenes. Such SOMO–LUMO interactions are the basis of reactive radical traps, affecting the selectivity in radical reactions. For...
2.1K
01:11Radical Reactivity: Overview
2.1K
Radicals, the highly reactive species, gain stability by undergoing three different reactions. The first reaction involves a radical-radical coupling, in which a radical combines with another radical, forming a spin‐paired molecule. The second reaction is between a radical and a spin‐paired molecule, generating a new radical and a new spin‐paired molecule. The third reaction is radical decomposition in a unimolecular reaction, forming a new radical and a spin‐paired...
2.1K
02:24Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation
7.7K
Introduction
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
7.7K
01:16Cycloaddition Reactions: Overview
2.6K
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.
2.6K