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Binary conjugate Brønsted–Lewis acid supported on mesoporous silica nanoparticles for the domino addition/elimination/addition and addition/elimination/addition/cyclization cascade

Authors
Journal
Catalysis Communications
1566-7367
Publisher
Elsevier
Publication Date
Volume
43
Identifiers
DOI: 10.1016/j.catcom.2013.10.012
Keywords
  • Mesoporous Silica Nanoparticle
  • Conjugate BrøNsted–Lewis Acid
  • Tetraketones
  • Xanthenes

Abstract

Abstract Fluoroboric acid (HBF4) adsorbed on mesoporous silica nanoparticles of 25–30nm dimension was synthesized and characterized by N2 adsorption, HRTEM, EDX, XPS, XRD, 29Si MAS NMR etc. The applicability of silica-HBF4 was probed through a library synthesis of tetraketones or their tautomeric enol forms. These tetraketones are further transformed into xanthenes. Synthesis using aqueous-ethanol is of paramount importance for its sustainable green impact.

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