S. P. Chavan, P. K. Zubaidha, S. W. Dantale, A. Kesavaraja, A. V. Ramaswamy and T. Ravindranathan, “Use of Solid Superacid (Sulphated SnO2) as Efficient Catalyst in Facile Transesterification of Ketoesters,” Tetrahedron, Vol. 37, No. 2, 1996, pp. 233-236. doi:10.1016/0040-4039(95)02136-1

has been cited by the following article:

• TITLE: SO42-/SnO2-Catalyzed C3-alkylation of 4-hydroxycoumarin with secondary benzyl alcohols and O-alkylation with O-acetyl compounds

  AUTHORS: Venugopalarao Narayana, Ravi Varala, Pudukulathan Zubaidha

  KEYWORDS: C-C and C-O bond formations, Sulfated tin oxide (STO), reusability, 4-Hydroxy coumarin, secondary benzyl alcohol, secondary benzyl O-acetate

  JOURNAL NAME: International Journal of Organic Chemistry, Vol.2 No.3A, October 3, 2012

  ABSTRACT: 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.