Abstract
Novel fluorescent coumarin-4H-pyran conjugates were achieved by three-component reactions of various synthetic β-ketoesters with aldehydes and malononitrile in aqueous media. Besides mild reaction conditions, operational simplicity, absence of tedious separation procedures, using of inexpensive and nontoxic commercially available cationic surfactant cetyltrimethylammonium chloride (CTAC) as a catalyst are the prominent advantage of this method.
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