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Updated: Sep 9, 2025

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
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モノ-およびビス-トリアゾリルフェニラゾアニリン-機能化されたコピラー [1] の刺激反応性超分子ポリマー 領域: 独特の結合方式

Chun-Yi Yao1, Yung-Yu Chang1, Reguram Arumugaperumal1

  • 1Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 30050, Taiwan.

Chemistry, an Asian journal
|August 31, 2025
PubMed
まとめ

機能化されたコピラー[5]アレーンから合成された新しい超分子ポリマーには,二重のpHと光反応性がある. ポリメリゼーション度と比率はpHによって制御され,高度な材料設計が可能である.

キーワード:
アゾベンゼンクリック反応コピラー[5] アレナ自己組み立て刺激に反応する超分子ポリマー

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Aryldiazonium Salts to Azo Dyes: Diazo Coupling01:11

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the...
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Diazonium Group Substitution: –OH and –H01:19

Diazonium Group Substitution: –OH and –H

Nitrous acid, a weak acid, is prepared in situ via the reaction of sodium nitrite with a strong acid under cold conditions. This nitrous acid prepared in situ reacts with primary arylamines to form arenediazonium salts. Such reactions are known as diazotization reactions. As shown in Figure 1, the formation of arenediazonium salts begins with the decomposition of nitrous acid in an acidic solution to give nitrosonium ions.
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