Article citationsMore>>

M. Itoigawa, C. Ito, H. T.-W. Tan, M. Kuchide, H. To-kuda, H. Nishino and H. Furukawa, “Cancer Chemopreventive Agents, 4-Phenylcoumarins from Calophyllum inophyllum,” Cancer Letters, Vol. 169, No. 1, 2001, pp. 15-19. doi:10.1016/S0304-3835(01)00521-3

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.