N. G. Khaligh
2015
Citations
0
Influential Citations
25
Citations
Journal
Chinese Chemical Letters
Abstract
Abstract 4-(Succinimido)-1-butane sulfonic acid as an efficient and reusable Bronsted acid catalyzed the synthesis of pyrano[4,3-b]pyran derivatives under solvent-free conditions. The catalyst can be prepared by mixing succinimide and 1,4-butanesultone that is more simple and safer than the preparation of succinimide sulfonic acid. This method has the advantages of high yield, clean reaction, simple methodology and short reaction time. The catalyst could be recycled without significant loss of activity.