Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1269819 | Ultrasonics Sonochemistry | 2014 | 6 Pages |
Abstract
•FeCl3 an efficient catalyst for the ultrasound-assisted Pechmann reaction.•High yields, short reaction times and solvent-free conditions.•Comparison of ultrasound- and microwave-assisted conditions.
The catalytic activity of FeCl3 for the synthesis of a variety of 4-substituted coumarins using high energy techniques has been investigated. The ultrasonic-assisted conditions provide a useful complement to the Pechmann reaction, affording the coumarin derivatives in excellent yields, under solvent-free conditions, in short reaction times using an inexpensive, mild and benign Lewis acid catalyst.
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Authors
Kyriakos C. Prousis, Nicolaos Avlonitis, Georgios A. Heropoulos, Theodora Calogeropoulou,