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Solid-phase preparation of amides using N-acylbenzotriazoles
Alan R Katritzky1, Boris V Rogovoy, Nataliya Kirichenko
1Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville 32611-7200, USA. katritzky@chem.ufl.edu
Bioorganic & Medicinal Chemistry Letters
|June 28, 2002
Summary
This study demonstrates an efficient method for synthesizing amides from Wang resin-linked amines using acylbenzotriazoles. The process yields diverse amides with high purity, offering a valuable tool for chemical synthesis.
Area of Science:
- Organic Chemistry
- Solid-Phase Synthesis
Background:
- Solid-phase synthesis is crucial for efficient library generation.
- Amide bond formation is a fundamental transformation in organic chemistry.
Purpose of the Study:
- To develop an efficient method for converting resin-linked amines to amides.
- To utilize acylbenzotriazoles as coupling reagents in solid-phase synthesis.
Main Methods:
- Amines were immobilized on Wang resin.
- Acylbenzotriazoles were employed for amide coupling.
- Resin cleavage was performed to isolate the synthesized amides.
Main Results:
- Efficient conversion of Wang resin-linked amines to amides was achieved.
- Yields ranged from 30-99% for the synthesized amides (7Aa-Gf).
- Products exhibited good to excellent purity.
Conclusions:
- Acylbenzotriazoles are effective reagents for solid-phase amide synthesis.
- This method provides a reliable route to diverse amides with high purity.