Synthesis of 1,8-dioxo-octahydroxanthenes under solvent-free conditions via Phosphorus pentoxide supported on alumina (P2O5/Al2O3) catalyzed tandem reaction of Aldehyde with dimedone

Subject Areas :

Tayebeh Sanaeishoar ¹ , Negar Hormozinezhad ²

1 - Department of Chemistry, College of Science, Khouzestan Science and Research Branch, Islamic Azad University, Ahvaz, Iran
2 - Department of Chemistry, College of Science, Khouzestan Science and Research Branch, Islamic Azad University, Ahvaz, Iran

Received: 2016-06-01 Accepted : 2016-06-01 Published : 2012-05-01

Keywords: Solvent-free, 1, Multicomponent reactions, 8-dioxo-octahydroxanthenes, Phosphorus pentoxide used on alumina,

Abstract :

Phosphorus pentoxide used on alumina (P2O5/Al2O3) as an inexpensive, eco-friendly and non-toxic acid catalyst for the one-pot synthesis of 1,8-dioxo-octahydroxanthenes via multi-component reactions under solvent-free conditions. The present approach offers several advantages such as short reaction times, high yields, easy purification, recovery and reusability of the catalyst.