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Abstract
A number of hitherto unreported 10-enynylacridones (4a-f) were obtained in good yields by refluxing 10-(4′-aryloxybut-2-ynyl) acridones (3a-f) with benzyltriethyl-amonium chloride (BTEAC) and aqueous potassium hydroxide (50%) in toluene or directly from acridones (1) and 1-aryloxy-4-chlorobut-2-ynes (5) under the same reaction conditions.