Chem Sci Trans., 2014, 3(2),  pp 819- 825  

Research Article

SiO₂/ZnCl₂-Catalyzed Heterocyclic Synthesis: Green, Rapid and Efficient One-Pot Synthesis of 14-H-dibenzo [a, j]Xanthenes, 1,8-Dioxo-octahydroxanthenes and 1,8-Dioxo-Decahydroacridines Under Solvent-Free Conditions

HANAN A. SOLIMAN AHMAD Y. MUBARAK, AHMAD EL-MEKABATI and SAAD S. ELMORSY

Photochemistry Department, National Research Center, Dokki, Cairo, Egypt
Chemistry Department, Faculty of Science, Mansoura University, 35516-Mansoura, Egypt