関連する実験動画

Updated: Sep 10, 2025

Preparation of N-2-alkoxyvinylsulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines
10:42

Preparation of N-2-alkoxyvinylsulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines

Published on: January 3, 2018

9.9K

ハイパーブランチドポリトリアゾールの合成と機能化のためのワンポット戦略

Hyeongju Noh1, Jaehyeon Kim1, Jina Min1

  • 1Department of Chemistry Education, Chonnam National University, Gwangju, Korea.

Designed monomers and polymers
|August 21, 2025
PubMed
まとめ

この研究は,Huisgenのサイクル添加を用いた機能的ハイパーブランチドポリトリアゾール (HBPT) の作成のためのシンプルな1ポット方法を示しています. これらの新しいポリマーは,潜在的応用のために調整可能な性質を示しています.

キーワード:
1,3-二極サイクロアディションワンポットハイパーブランチポリマー膜ポリトリアゾール

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The method to achieve α-brominated carboxylic acids using a mixture of phosphorus tribromide and bromine is known as the Hell–Volhard–Zelinski reaction. The reaction is catalyzed by phosphorus tribromide, which can be used directly or produced in situ from red phosphorus and bromine. The mechanism comprises PBr3 catalyzed conversion of acid to acid bromide and hydrogen bromide. The acid bromide enolizes to its enol form in the presence of HBr. The nucleophilic enol attacks the...
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A significant aspect of hydroboration–oxidation is the regio- and stereochemical outcome of the reaction.
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In organic synthesis, the formation of products can be altered by changing the reaction conditions. For example, a dibromo addition product is formed when propene is treated with bromine at room temperature. In contrast, propene undergoes allylic substitution in non-polar solvents at high temperatures to give 3-bromopropene. In order to avoid the addition reaction, the bromine concentration must be kept as low as possible throughout the reaction. This can be achieved using N-bromosuccinimide...
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