Citation: Shahnaz Rostamizadeha, Ali Mohammad Amania, Gholam Hossein Mahdavinia, Nasrin Shadjoua. Silica supported ammonium dihydrogen phosphate (NH₄H₂PO₄/SiO₂):A mild, reusable and highly efficient heterogeneous catalyst for the synthesis of 14-aryl-14-H-dibenzo[a,j]xanthenes[J]. Chinese Chemical Letters, ;2009, 20(7): 779-783. doi: 10.1016/j.cclet.2009.03.016 shu

Silica supported ammonium dihydrogen phosphate (NH₄H₂PO₄/SiO₂):A mild, reusable and highly efficient heterogeneous catalyst for the synthesis of 14-aryl-14-H-dibenzo[a,j]xanthenes

a Department of Chemistry, K.N. Toosi University of Technology, and P.O. Box 15875-4416 Tehran, Iran;
b Department of Chemistry, Islamic Azad University-Marvdasht Branch, Marvdasht, Iran

Received Date: 24 October 2008

Silica supported ammonium dihydrogen phosphate (NH₄H₂PO₄/SiO₂) is found to be a recyclable heterogeneous catalyst for a rapid and efficient synthesis of various aryl-14-H-dibenzo[a,j]xanthenes with excellent yields under solvent-free conditions. The present methodology offers several advantages such as excellent yields, simple procedure, short reaction times and milder conditions.
- Xanthenes,
- Heterogeneous catalyst,
- Silica supported ammonium dihydrogen phosphate
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