EFFICIENT ONE-POT SYNTHESIS OF 2-ALKYLQUINOLINES UNDER SOLVENT-FREE CONDITIONS USING SULFONIC ACID FUNCTIONALIZED IONIC LIQUID AS A RECOVERABLE AND REUSABLE CATALYST

[摘要]：Sulfonic acid functionalized ionic liquid (FIL-A) was firstly used as a recoverable and reusable catalyst for the synthesis of 2-alkylquinoline derivatives from simple and readily available alkylaldehydes and arylamines. The method has the advantages of simple experimental procedure, easy recovery and reuse of catalyst, solvent-free and mild reaction conditions, excellent functional group tolerance, etc. which makes it a highly practical and environmentally benign pathway for the synthesis of 2-alkylquinolines.

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