4.6 Article

Mesoporous Titania-Iron(III) Oxide with Nanoscale Porosity and High Catalytic Activity for the Synthesis of β-Amino Alcohols and Benzimidazole Derivatives

Journal

CHEMCATCHEM
Volume 7, Issue 17, Pages 2689-2697

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201500563

Keywords

amino alcohols; heterogeneous catalysis; iron; mesoporous materials; titanium

Funding

  1. Council of Scientific and Industrial Research (CSIR)
  2. Department of Science and Technology (DST), New Delhi, India
  3. DST
  4. UGC, New Delhi
  5. DST-SERB, New Delhi

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A mesoporous TiO2-Fe2O3 mixed oxide material (MTF-1E) with nanoscale porosity and a high BET surface area was synthesized using sodium dodecyl sulfate (SDS) as a structure-directing agent. The material was characterized by powder XRD, high-resolution TEM, N-2 sorption, and NH3 temperature-programmed desorption studies. The catalyst shows an excellent regioselectivity for the ring-opening of epoxides with amines under solvent-free conditions at room temperature for the synthesis of a series of beta-amino alcohols. It also showed a very high catalytic efficiency for the synthesis of benzimidazole derivatives in water. The catalyst can be recovered easily from the reaction medium and reused six times without a significant decrease in its catalytic activity and selectivity.

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