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Updated: May 3, 2026

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
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Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

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アルキルアミンをC-N結合活性化によるニッケル触媒クロスカップリングの電極として利用

Corey H Basch1, Jennie Liao1, Jianyu Xu1

  • 1Department of Chemistry & Biochemistry, University of Delaware , Newark, Delaware 19716, United States.

Journal of the American Chemical Society
|April 1, 2017
PubMed
まとめ

研究者は,C-N結合活性化によるアルキルアミンをアルキル化剤として使用した新しいスズキ-ミヤウラクロスカップリング方法を開発した. この新しい戦略は,広範囲と機能的グループ耐性を有するプライマリおよび二次アルキル群の設置を可能にします.

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Catalysis02:50

Catalysis

The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
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Electrophiles02:28

Electrophiles

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While a positive electrophile, like a proton, reacts due to its vacant, low-energy 1s orbital, the...
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All ortho–para directors, excluding halogens, are activating groups. These groups donate electrons to the ring, making the ring carbons electron-rich. Consequently, the reactivity of the aromatic ring towards electrophilic substitution increases. For instance, the nitration of anisole is about 10,000 times faster than the nitration of benzene. The electron-donating effect of the methoxy group in anisole activates the ortho and para positions on the ring and stabilizes the corresponding...
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All meta-directing substituents are deactivating groups. These substituents withdraw electrons from the aromatic ring, making the ring less reactive toward electrophilic substitution. For example, the nitration of nitrobenzene is 100,000 times slower than that of benzene because of the deactivating effect of the nitro group. The first step in an electrophilic aromatic substitution is the addition of an electrophile to form a resonance-stabilized carbocation. The energy diagrams for...
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