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Updated: Jan 12, 2026

Metal-free Synthesis of Ynones from Acyl Chlorides and Potassium Alkynyltrifluoroborate Salts
Published on: February 24, 2015
Myriad aryne derivatives from carboxylic acids
Chris M Seong1, Sallu S Kargbo1, Chia-Ling Yu1
1Department of Chemistry, University of Minnesota, Minneapolis, MN, USA.
Researchers developed a new aryne precursor from carboxylic acids, activated by light or heat. This method generates novel aminated arynes, expanding synthetic chemistry applications in drug discovery and agrochemicals.
Area of Science:
- Organic Chemistry
- Synthetic Chemistry
- Medicinal Chemistry
Background:
- Aromatic compounds are vital in pharmaceuticals and agrochemicals.
- Aryne intermediates offer significant synthetic potential but have limited adoption due to challenging generation methods.
Purpose of the Study:
- To design a novel aryne precursor that overcomes current limitations in aryne generation.
- To enable wider application of aryne chemistry in drug discovery and related fields.
Main Methods:
- Derivatization of readily available carboxylic acids into a single-step aryne precursor.
- Activation of the precursor using blue light or heat to generate aryne intermediates.
Main Results:
- Successful generation of dozens of previously unknown aminated arynes, including pyridynes.
- Demonstration of a versatile and accessible method for aryne precursor synthesis and activation.
Conclusions:
- The developed precursor platform significantly lowers the barrier to using aryne intermediates in synthesis.
- This work opens new avenues for drug discovery and the synthesis of complex aromatic molecules.
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