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dc.contributor.authorJAHIER, C.
dc.contributor.authorTOUZANI, R.
dc.contributor.authorEL KADIRI, S.
dc.contributor.authorNLATE, S.
dc.date.accessioned2020-09-03T07:56:15Z
dc.date.available2020-09-03T07:56:15Z
dc.date.issued2016
dc.identifier.issn0020-1693
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/10858
dc.description.abstractEnEnantiopure 24-armed dendritic polyoxometalate (DENDRI-POM) hybrids were prepared by ionic coupling of enantiopure 8-armed n-propyl dendritic ammoniums with a catalytically active peroxophosphotungstate trianion {PO4[WO(O-2)(2)](4)}(3). The catalytic properties of these DENDRI-POM hybrids were evaluated in the oxidation of thioanisole as a model reaction and compared to those of the 12-armed n-propyl analogous previously reported in our group. Up to 10% enantiomeric excess (ee) was obtained, indicating a negative effect on the reaction rate and the enantioselectivity, whereas the selectivity to the chiral sulfoxide versus sulfone was improved. This study aids understanding of how the structure and size of the dendritic wedge around the POM can influence its catalytic properties, especially regarding enantioselectivity. Four catalytic cycles were performed without any obvious change in the activity, selectivity and enantioselectivity. (C) 2016 Elsevier B.V. All rights reserved.
dc.language.isoen
dc.title.enEnantiopure 24-armed dendritic polyoxometalates: Synthesis and evaluation as recoverable catalysts for asymmetric sulfide oxidation
dc.typeArticle de revue
dc.identifier.doi10.1016/j.ica.2016.05.019
dc.subject.halChimie/Matériaux
bordeaux.journalInorganica Chimica Acta
bordeaux.page81-86
bordeaux.volume450
bordeaux.hal.laboratoriesInstitut de Chimie & de Biologie des Membranes & des Nano-objets (CBMN) - UMR 5248*
bordeaux.hal.laboratoriesInstitut de Chimie & de Biologie des Membranes & des Nano-objets (CBMN, UMR 5248)
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Inorganica%20Chimica%20Acta&rft.date=2016&rft.volume=450&rft.spage=81-86&rft.epage=81-86&rft.eissn=0020-1693&rft.issn=0020-1693&rft.au=JAHIER,%20C.&TOUZANI,%20R.&EL%20KADIRI,%20S.&NLATE,%20S.&rft.genre=article


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