IJOC  Vol.2 No.3 A , November 2012
SO42-/SnO2-Catalyzed C3-alkylation of 4-hydroxycoumarin with secondary benzyl alcohols and O-alkylation with O-acetyl compounds
Sulfated tin oxide (STO) has been found to be an efficient reusable solid superacid catalyst for C3-alkylation and O-alkylation of 4-hydroxycoumarins with benzylic, allylic alcohols/and corresponding acetates respectively, in acetic acid under reflux conditions with good yield of products.

Cite this paper
V. Narayana, R. Varala and P. Zubaidha, "SO42-/SnO2-Catalyzed C3-alkylation of 4-hydroxycoumarin with secondary benzyl alcohols and O-alkylation with O-acetyl compounds," International Journal of Organic Chemistry, Vol. 2 No. 3, 2012, pp. 287-294. doi: 10.4236/ijoc.2012.223039.
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