Preparation, characterisation and some reactions of organocatalysts immobilised between the layers of a CaFe-layered double hydroxide

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8 Citations (Scopus)

Abstract

Five- and six-membered cyclic a-amino acid anions with secondary nitrogen in the ring (L-prolinate and DL-pipecolinate) were immobilised in Ca3Fe-L(ayered) D(ouble)H(ydroxide) by the dehydration-rehydration method. The resulting organic-inorganic hybrids were characterised by various instrumental methods (powder X-ray diffraction, scanning electron microscopy, energy dispersive X-ray fluorescence with elemental mapping, and analytical techniques for determining the iron as well as the organic contents) and molecular modelling. The immobilised organocatalysts were tested in the cross-aldol dimerizationcondensation reaction between benzaldehyde and acetone and found to be active and enantioselectivity in the dimerization was also observed.

Original languageEnglish
Pages (from-to)858-864
Number of pages7
JournalTopics in Catalysis
Volume55
Issue number11-13
DOIs
Publication statusPublished - Aug 2012

Keywords

  • Cross-aldol reaction-condensation
  • DL-pipecolinate-LDH
  • L-prolinate-CaFe-LDH
  • Structural characterisation

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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