| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5215310 | Tetrahedron | 2015 | 9 Pages |
Abstract
An efficient and environment-friendly method for the synthesis of benzopyranopyrimidines has been developed using the ultrasound-mediated condensation of salicylic aldehydes, malononitrile and secondary amines under solvent-free condition at room temperature in the presence of polystyrene supported p-toluenesulfonic acid to give the desired product in good to excellent yield. This procedure gives several advantages over current methods including a simple work-up, cost effectiveness, are usable catalyst and shorter reaction times.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Bodakuntla Thirupathaiah, Mudumala Veeranarayana Reddy, Yeon Tae Jeong,