Diammonium Hydrogen Phosphate as a Neutral and Efficient Catalyst for Synthesis of 1,8‐Dioxo‐octahydroxanthene Derivatives in Aqueous Media

Abstract

A new and efficient method to synthesize a 3,3,6,6,9‐aryl‐1,8‐dioxo‐octahydroxanthene derivative using diammonium hydrogen phosphate as catalyst was performed in water at room temperature in a short periods.

Keywords:

• aqueous media
• 3,3,6,6,9‐aryl‐1,8‐dioxo‐octahydroxanthene
• diammonium hydrogen phosphate

Acknowledgments

Saeed Balalaie is grateful to the Alexander von Humboldt foundation for a research fellowship and equipment donation. Partial support of this work by the K. N. Toosi University of Technology Research Council is gratefully acknowledged.