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Journal of Chemical Sciences

, Volume 117, Issue 6, pp 635–639 | Cite as

Highly active and reusable catalyst from Fe-Mg-hydrotalcite anionic clay for Friedel-Crafts type benzylation reactions

  • Vasant R. ChoudharyEmail author
  • Rani Jha
  • Pankaj A. Choudhari
Article

Abstract

Fe-Mg-hydrotalcite (Mg/Fe = 3) anionic clay with or without calcination (at 200–800‡C) has been used for the benzylation of toluene and other aromatic compounds by benzyl chloride. Hydrotalcite before and after its calcination was characterized for surface area, crystalline phases and basicity. Both the hydrotalcite, particularly after its use in the benzylation reaction, and the catalyst derived from it by its calcination at 200–800‡C show high catalytic activity for the benzylation of toluene and other aromatic compounds. The catalytically active species present in the catalyst in its most active form are the chlorides and oxides of iron on the catalyst surface.

Keywords

Fe-Mg-hydrotalcite activation by calcinations benzylation of toluene benzylation of aro-matic compounds 

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Copyright information

© Indian Academy of Sciences 2005

Authors and Affiliations

  • Vasant R. Choudhary
    • 1
    Email author
  • Rani Jha
    • 1
  • Pankaj A. Choudhari
    • 1
  1. 1.Chemical Engineering and Process Development DivisionNational Chemical LaboratoryPuneIndia

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