Abstract
Quinolines and their derivatives bearing fluorine-containing substituents are essential structural motifs found in numerous bioactive compounds and advanced functional materials. Therefore, there is an urgent need to develop new synthetic methods for fluoroalkylated quinoline derivatives. In this study, we present a facile and efficient approach to access fluoroalkylated quinoline derivatives by using Eaton's reagent as a cost-effective, and commercially available reagent. This Combes cyclization reaction demonstrated compatibility with various arylamines bearing diverse functional groups, resulting in the synthesis of 2,4-bis(trifluoromethyl)quinolines and 2,4-bis(difluoromethyl)quinolines in moderate to high yields. Furthermore, this reaction can be conveniently carried out in a solvent-free one-pot protocol.
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