SO42-/SnO2-Catalyzed C3-alkylation of 4-hydroxycoumarin with secondary benzyl alcohols and O-alkylation with O-acetyl compounds Author Name Venugopalarao Narayana et al Category Computer science, information & general works Type Journal Tags C-C and C-O bond formations,Sulfated tin oxide (STO),Reusability,4-Hydroxy coumarinate Login to Access Content