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Updated: May 25, 2026

Preparation of N-(2-alkoxyvinyl)sulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines
Published on: January 3, 2018
A "one-pot" multicomponent approach to polysubstituted 4-aminopyridines
Jiaan Shao1, Wanwan Yu, Zhanying Shao
1Institute of Materia Medica, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China.
A new domino reaction efficiently synthesizes polysubstituted 4-aminopyridines using readily available starting materials under mild conditions. This method offers a facile route to valuable pyridine derivatives.
Area of Science:
- Organic Chemistry
- Synthetic Chemistry
Background:
- 4-Aminopyridines are important heterocyclic compounds with diverse applications.
- Efficient synthetic methods for polysubstituted 4-aminopyridines are highly sought after.
Purpose of the Study:
- To develop a novel and facile domino reaction for synthesizing polysubstituted 4-aminopyridines.
- To explore the scope and limitations of the developed reaction.
Main Methods:
- The reaction involves the condensation of α-azidovinylketones, aldehydes, and methylamine derivatives.
- Mild reaction conditions were employed.
Main Results:
- A variety of polysubstituted 4-aminopyridines were synthesized in reasonably good yields.
- A plausible reaction mechanism was proposed.
Conclusions:
- The developed domino reaction provides an efficient and versatile method for accessing polysubstituted 4-aminopyridines.
- The proposed mechanism offers insights into the reaction pathway.
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