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Updated: Jun 29, 2025

Synthesis of Monocyte-targeting Peptide Amphiphile Micelles for Imaging of Atherosclerosis
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Synthesis of Monocyte-targeting Peptide Amphiphile Micelles for Imaging of Atherosclerosis

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ミセラエージェントへの反応としてイミンの立体動的ネットワークの三重適応:内部吸収-インターフェイスの局所化-形状の移行

Tanguy Rieu1, Artem Osypenko1, Jean-Marie Lehn1

  • 1Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires (ISIS), Université de Strasbourg, 8 allée Gaspard Monge, 67000 Strasbourg, France.

Journal of the American Chemical Society
|March 25, 2024
PubMed
まとめ

ミセルのように人工のマイクロコンパートメントは 複雑な化学反応を制御し 分子を分解から保護します この研究は,ミセルがネットワーク構成要素を選択的に表現する方法を示し,化学システムにおける新興の複雑性の理解を助けます.

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Aldehydes and Ketones with Amines: Imine Formation Mechanism01:23

Aldehydes and Ketones with Amines: Imine Formation Mechanism

Imine formation involves the addition of carbonyl compounds to a primary amine. It begins with the generation of carbinolamine through a series of steps involving an initial nucleophilic attack and then several proton transfer reactions. The second part includes the elimination of water, as a leaving group, to give the imine.
Imines are formed under mildly acidic conditions. A pH of 4.5 is ideal for the reaction.
If the pH is low or the solution is too acidic, the reaction slows down in the...
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Aldehydes and Ketones with Amines: Imine and Enamine Formation Overview01:16

Aldehydes and Ketones with Amines: Imine and Enamine Formation Overview

Primary amines react with carbonyl compounds—aldehydes and ketones—to generate imines. Imines consist of a C=N double bond and are named Schiff bases after its discoverer—the German chemist Hugo Schiff. On the other hand, secondary amines react with carbonyl compounds to give enamines. In enamines, the presence of a C=C double bond adjacent to the nitrogen atom leads to the delocalization of the lone pair.
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Basicity of Heterocyclic Aromatic Amines01:25

Basicity of Heterocyclic Aromatic Amines

Heterocyclic amines, where the N atom is a part of an alicyclic system, are similar in basicity to alkylamines. Interestingly, the heterocyclic amine having a nitrogen atom as part of an aromatic ring has much less basicity than its corresponding alicyclic counterpart. For this reason, as presented in Figure 1, piperidine (pKb = 2.8) is significantly more basic than pyridine (pKb = 8.8).
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