Journal of Porous Materials

, Volume 23, Issue 4, pp 1095–1105 | Cite as

Modified mesoporous aluminophosphate as an efficient solid acid catalyst for the synthesis of novel O- and N-acetylated compounds: solvent free condition

  • K. Shyamprasad
  • S. Z. Mohamed Shamshuddin
  • M. Shyamsundar
  • N. Thimmaraju


Solid acids such as amorphous aluminophosphates (AlP) modified with different transition metals (Fe/Mo/W) were synthesized by either precipitation or co-precipitation methods. These solid acids were characterized by BET, NH3-TPD, PXRD and FT-IR techniques. The catalytic activity of these solid acids was evaluated in the synthesis of novel O- and N-acetylated compounds of various substituted alcohols, phenols, pyridine alcohols, furan alcohols, aryl alcohols and amines under solvent free conditions with acetic anhydride as an acetylating agent. The reaction conditions were optimized by varying the catalyst, molar ratio of the reactants, reaction temperature and amount of the solid acid catalyst. Among the solid acids, FeAlP consisting of 0.025 mol% Fe showed good catalytic activity in the acetylation reaction and produces high yield of acetylated products. In addition, the catalysts can also be reused in acetylation at least for 4 reaction cycles without significance loss of catalytic activity.


Mesoporous aluminophosphates FeAlP (0.025) Solid acid O- and N-acetylation Solvent-free synthesis Novel acetylated compound 



Acetic anhydride


4-Methoxy phenyl acetate


4-Methoxy phenol



Authors are thankful to VGST, GoK (GRD-375), for funding, IISc, Bangalore for providing IR, PXRD, GC–MS data and IITM for NMR and BET analysis.


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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • K. Shyamprasad
    • 1
    • 2
  • S. Z. Mohamed Shamshuddin
    • 1
    • 2
  • M. Shyamsundar
    • 1
    • 2
  • N. Thimmaraju
    • 1
    • 2
  1. 1.Chemistry Research LaboratoryHMS Institute of TechnologyTumkurIndia
  2. 2.Research and Development CentreBharathiar UniversityCoimbatoreIndia

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