A general approach to construct selenopheno[3,2-b]indole-cored molecules using Fischer indolization
Roman A Irgashev1, Alexander S Steparuk1
1Postovsky Institute of Organic Synthesis, Ural Division, Russian Academy of Sciences, S. Kovalevskoy Str., 22, Ekaterinburg, 620990, Russia. irgashev@ios.uran.ru.
Organic & Biomolecular Chemistry
|July 17, 2024
Summary
Researchers developed a novel one-pot, two-step synthesis for diverse selenopheno[3,2-b]indole compounds. This efficient method utilizes the Fischer indole synthesis to create complex heterocyclic structures for potential applications.
Area of Science:
- Organic Chemistry
- Heterocyclic Chemistry
- Synthetic Methodology
Background:
- Selenopheno[3,2-b]indoles are a class of heterocyclic compounds with potential biological and material science applications.
- Efficient synthetic routes are crucial for accessing diverse derivatives of these core structures.
Purpose of the Study:
- To develop a versatile and efficient one-pot, two-step synthetic strategy for a wide range of selenopheno[3,2-b]indole derivatives.
- To explore the preparation of various substituted selenopheno[3,2-b]indoles, including fused ring systems.
Main Methods:
- The synthetic strategy is based on the Fischer indole synthesis.
- It involves the conversion of 3-aminoselenophen-2-carboxylates to 2-unsubstituted 3-aminoselenophenes.
- Subsequent C-2 protonation, reaction with arylhydrazines, and Fischer indolization yield the target selenopheno[3,2-b]indole molecules.
Main Results:
- A wide series of selenopheno[3,2-b]indole-based compounds were successfully prepared.
- This includes 2-aryl-substituted derivatives and fused systems such as benzo-, pyrido-, pyrazino-, and chromeno-selenopheno[3,2-b]indoles.
- The one-pot, two-step procedure proved effective for generating diverse molecular architectures.
Conclusions:
- The developed synthetic strategy offers an efficient route to diverse selenopheno[3,2-b]indole scaffolds.
- This methodology facilitates the preparation of complex heterocyclic compounds with potential for further investigation.
- The one-pot approach streamlines the synthesis, making it valuable for medicinal chemistry and materials science.
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