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Updated: Jul 16, 2026

Metal-free Synthesis of Ynones from Acyl Chlorides and Potassium Alkynyltrifluoroborate Salts
Published on: February 24, 2015
Retracted Article: An efficient one pot three-component synthesis of 2,4,6-triarylpyridines using triflimide as a
Hongshe Wang1, Weixing Zhao1, Juan Du1
1College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences Baoji 721013 China baojizwx@126.com.
Abstract:
A simple and efficient protocol developed for one pot three-component synthesis of 2,4,6-triarylpyridines from aromatic aldehydes, substituted acetophenones and ammonium acetate using the versatile super Brønsted acid triflimide (HNTf2) as an effective catalyst is described. The reactions proceed well in the presence of 1 mol% of HNTf2 at 80 °C under solvent-free conditions and provide the corresponding triarylpyridines in good to excellent yields. The method reported has several advantages such as a metal-free and commercially available catalyst, mild reaction conditions and lower loading of catalyst.
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