An efficient ring opening reaction of methyl epoxystearate promoted by synthetic acid saponite clays (Articolo in rivista)

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Label
  • An efficient ring opening reaction of methyl epoxystearate promoted by synthetic acid saponite clays (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/b900863b (literal)
Alternative label
  • Guidotti, M., Psaro, R., Ravasio, N., Sgobba, M., Carniato, F., Bisio, C., Gatti, G., Marchese, L. (2009)
    An efficient ring opening reaction of methyl epoxystearate promoted by synthetic acid saponite clays
    in Green chemistry (Print); Royal Society of Chemistry, Cambridge (Regno Unito)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Guidotti, M., Psaro, R., Ravasio, N., Sgobba, M., Carniato, F., Bisio, C., Gatti, G., Marchese, L. (literal)
Pagina inizio
  • 1173 (literal)
Pagina fine
  • 1178 (literal)
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  • 11 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 6 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
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  • CNR ISTM e unità IDECAT , via Venezian 21, 20133 Milano Università del Piemonte Orientale “A.Avogadro”, via Bellini 25G, 15100 Alessandria (literal)
Titolo
  • An efficient ring opening reaction of methyl epoxystearate promoted by synthetic acid saponite clays (literal)
Abstract
  • The acid-catalysed reaction of methyl 9,10-epoxystearate ring opening using synthetic saponite acid clay as catalyst, has been studied for the first time. In the presence of methanol, 90% of the epoxide substrate is converted after 5 min and the main reaction product is the vicinal hydroxyether, methyl methoxyhydroxystearate, with 84% of selectivity. In the absence of alcohol the ring opening reaction proceeds slower, leading to a mixture of methyl 9- and 10-oxostearate as main products, and a 9,10-epoxystearate conversion of 66% after 1 h. The performance of acid saponite, an environmentally benign catalyst, is exceedingly higher than those of strong mineralacids, such as H2SO4, widely used for this reaction. (literal)
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