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Nanocrystalline magnesium oxide stabilized gold nanoparticles: an advanced nanotechnology based recyclable heterogeneous catalyst platform for the one-pot synthesis of propargylamines

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dc.contributor.authorLayek, K.
dc.contributor.authorChakravarti, R.
dc.contributor.authorKantam, M.L.
dc.contributor.authorMaheswaran, H.
dc.contributor.authorVinu, A.
dc.date.issued2011
dc.descriptionData source: Supporting information, http://www.rsc.org/suppdata/gc/c1/c1gc15518k/c1gc15518k.pdf
dc.description.abstractA simple and elegant synthesis of gold nanoparticles via counter ion stabilization of AuCl 4 - on nanocrystalline magnesium oxide support followed by sodium borohydride reduction is described here. A thorough characterization of the resulting heterogeneous material revealed the presence of uniformly distributed gold nanoparticles (10-12 nm) deposited on to (111) plane of quasi-crystalline icosahedral lattice of nanocrystalline magnesium oxide which exhibits excellent catalytic activity for the one pot synthesis of structurally divergent propargylamines via a three component coupling of an alkyne, an amine and an aldehyde without requiring any additives or inert atmosphere. The catalyst contains ultra low loading of gold (0.236 mol%), and turnover numbers as high as 400 are obtained. The catalyst can be isolated by simple centrifugation and reused for four cycles.
dc.identifier.citationGreen Chemistry, 2011; 13(10):2878-2887
dc.identifier.doi10.1039/c1gc15518k
dc.identifier.issn1463-9262
dc.identifier.issn1463-9270
dc.identifier.urihttps://hdl.handle.net/11541.2/116485
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.relation.fundingIndo-NIMS Centre
dc.relation.fundingCouncil of Scientific and Industrial Research (CSIR) Senior Research Fellowship (SRF)
dc.rightsCopyright 2011 The Royal Society of Chemistry
dc.source.urihttps://doi.org/10.1039/c1gc15518k
dc.subjectmagnesium oxide
dc.subjectpropargylamines
dc.titleNanocrystalline magnesium oxide stabilized gold nanoparticles: an advanced nanotechnology based recyclable heterogeneous catalyst platform for the one-pot synthesis of propargylamines
dc.typeJournal article
pubs.publication-statusPublished
ror.mmsid9915985907001831

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