相关实验视频

Updated: May 23, 2025

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

Published on: April 10, 2015

R₃PNNPR₃与的物种的反应:古典吸附物,FLP和激进子

Vaibhav Bedi¹, Andrew Niles L Ocampochua¹, Zheng-Wang Qu²

¹Department of Chemistry, University of Toronto, 80 St. George St, Toronto, ON, M5S3H6, Canada.

Angewandte Chemie (International ed. in English)

|March 11, 2025

概括

双素化合物与易斯酸具有新鲜的反应性,形成添加物和挫败的易斯对. 一种双化物种经历了与易斯酸的单个电子转移,产生了一个丧的基因对.

科学领域:

有机化学化学有机化学
易斯的酸化学
主群化学化学

背景情况:

由于其独特的结构和结合,双酸物种具有显著的兴趣.
关于双酸化合物的反应性和化学行为的报告有限.

研究的目的:

为了研究双化物种与易斯酸的反应性.
探索 adducts,挫败的易斯对 (FLPs) 和挫败的根基对 (FRPs) 的形成.
描述由此产生的物种的电子和结构性质,包括基离子.

主要方法:

双酸酶 (Ph3PNNPPh3和Cy3PNNPCy3) 与各种易斯酸 (B(C6F5) 3,BPh3,[Cp2Fe][BF4]) 的反应.
使用光谱和结构方法对反应产品进行表征.
热解研究,以评估添加物和反应中间体的稳定性.
计算分析以了解结合和电子性质.

主要成果:

Ph3PNNPPh3与易斯酸反应,形成添加物 (例如,Ph3PNN(B(C6F5)3) PPh3) 和一个与BPh3相结合的易斯对.
Ph3PNNPPh3/BPh3系统或 adduct 的热解释放 N2,而 BF3 的 adduct 是稳定的.
通过单个电子转移,Cy3PNNPCy3与B(C6F5)3发生反应,形成一个丧的基因对.
基盐[R3PNNPR3]•+[BF4]−为和环基衍生物进行了合成.
在 bis-phosphhazine 基离子中观察到 N-N 键的加强.

结论:

双酸化合物与易斯酸具有不同的反应模式,导致 adducts,FLPs和FRPs.
氨酸替代物的电子性质影响反应途径 (附加与单个电子转移).
双酶基离子表现出强化的N-N键,表明独特的电子稳定性.

关键词:

一对丧的路易斯夫妇.丧的基数对对.易斯酸添加剂的添加剂它们是激素的化物.

更多相关视频

Real-time Monitoring of Reactions Performed Using Continuous-flow Processing: The Preparation of 3-Acetylcoumarin as an Example

Real-time Monitoring of Reactions Performed Using Continuous-flow Processing: The Preparation of 3-Acetylcoumarin as an Example

Published on: November 18, 2015

Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction

Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction

Published on: August 23, 2018

相关概念视频

Radical Reactivity: Overview

Radical Reactivity: Overview

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...

Synthesis and Decomposition Reactions

Synthesis and Decomposition Reactions

Synthesis and decomposition are two types of redox reactions. Synthesis means to make something, whereas decomposition means to break something. The reactions are accompanied by chemical and energy changes.

Reactions of Aldehydes and Ketones: Baeyer–Villiger Oxidation

Reactions of Aldehydes and Ketones: Baeyer–Villiger Oxidation

Baeyer–Villiger oxidation converts aldehydes to carboxylic acids and ketones to esters. The reaction uses peroxy acids or peracids and is often catalyzed by acid. The reaction is named after its pioneers, Adolf von Baeyer and Victor Villiger. The reaction is achieved by a wide range of peracids such as m-chloroperoxybenzoic acid (mCPBA), perbenzoic acid (C6H5COOOH), peracetic acid (CH3COOOH), hydrogen peroxide (H2O2), and tert-butyl hydroperoxide (t-BuOOH).
The carbonyl center is...

Pericyclic Reactions: Introduction

Pericyclic Reactions: Introduction

Pericyclic reactions are organic reactions that occur via a concerted mechanism without generating any intermediates. The reactions proceed through the movement of electrons in a closed loop to form a cyclic transition state, where rearrangement of the σ and π bonds yields specific products.
Pericyclic reactions can be classified into three categories: electrocyclic reactions, cycloaddition reactions, and sigmatropic rearrangements. Electrocyclic reactions and sigmatropic...

Rate-Determining Steps

Rate-Determining Steps

Relating Reaction Mechanisms
In a multistep reaction mechanism, one of the elementary steps progresses significantly slower than the others. This slowest step is called the rate-limiting step (or rate-determining step). A reaction cannot proceed faster than its slowest step, and hence, the rate-determining step limits the overall reaction rate.
The concept of rate-determining step can be understood from the analogy of a 4-lane freeway with a short-stretch of traffic-bottleneck caused due to...

Radical Reactivity: Intramolecular vs Intermolecular

Radical Reactivity: Intramolecular vs Intermolecular

Radical reactions can occur either intermolecularly or intramolecularly. In an intermolecular radical reaction, a nucleophilic radical adds to an electrophilic alkene or vice versa. In such reactions, the radical and generally the alkene, which is also called the radical trap, are two different molecules. Additionally, for such intermolecular reactions to occur, the radical trap must be active, present in an excess concentration, and the radical starting material must have a weak...