Nano-TiCl4.SiO2: A Versatile and Efficient Catalyst for Synthesis of 14-aryl or alkyl-14H-dibenzo[a,j]xanthenes
نویسندگان
1 Department of Chemistry, College of Science, Yazd University, Yazd, PO Box 89195-741, I. R. Iran.
2 Department of Chemistry, College of Science, Yazd University, Yazd, PO Box 89195-741, I. R. Iran.
3 Deprtment of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, I. R. Iran.
doi
10.7508/jns.2013.04.011چکیده
Nano-silica supported titanium tetrachloride (TiCl4.SiO2) was prepared and used as an acid catalyst for the 14-aryl or alkyl-14H-dibenzo[a,,j]xanthenesreaction under solvent-free conditions. Compared to the classical 14-aryl or alkyl-14H-dibenzo[a,j]xanthenesreaction conditions, this method consistently has the advantage of excellent yields, mild reaction conditions, ease of workup, survival of different functional groups and short reaction times.
