Article

Silica sulfuric acid: A simple, efficient, and reusable heterogeneous catalyst for the one-pot synthesis of aryl-14H-dibenzo[a,j]xanthenes under conventional heating and solvent-free conditions

Chemistry of Heterocyclic Compounds (Impact Factor: 0.7). 02/2008; 44(2):143-147. DOI: 10.1007/s10593-008-0035-3

ABSTRACT A novel approach towards the one-pot synthesis of aryl-14H-dibenzo[a,j]xanthenes is described from a known reaction between
substituted aldehydes and β-naphthol in the presence of heterogeneous catalyst silica sulfuric acid under conventional heating
as well as solvent-free conditions to afford good to excellent yields. The catalyst is reusable; it can be used several times
without any decrease in the product yield.

1 Bookmark
 · 
121 Views