• Sulfanilic acid functionalized mesoporous SBA-15: A water-tolerant solid acid catalyst for the synthesis of uracil fused spirooxindoles as antioxidant agents

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      https://www.ias.ac.in/article/fulltext/jcsc/127/08/1389-1395

    • Keywords

       

      Spirooxindole; water-tolerant catalyst; mesoporous silica; antioxidant agent.

    • Abstract

       

      Incorporating sulfanilic acid as a hydrophobic Brønsted acid inside the nanospaces of SBA-15 led to a water-tolerant solid acid catalyst, SBA-15-PhSO 3 H, which showed excellent catalytic performance in synthesis of uracil-fused spirooxindoles in aqueous ethanol. The synthesized compounds were evaluated for their antioxidant activity by 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging assay.

    • Author Affiliations

       

      Robabeh Baharfar1 Razieh Azimi1

      1. Department of Chemistry, University of Mazandaran, P. O. Box 47415, Babolsar, Iran
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