%0 Journal Article
%T SulfonicacidheterogeneouscatalystsfordehydrationofC6-monosaccharidesto5-hydroxymethylfurfuralindimethylsulfoxide
%A Gabriel Morales
%A Juan A. Melero
%A Marta Paniagua
%A Jose Iglesias
%A Blanca Hern¨¢
%A ndez
%A Mar¨ª
%A a Sanz
%J ´ß»¯Ñ§±¨
%P 644-655
%D 2014
%R 10.1016/S1872-2067(14)60020-6
%X £¿Sulfonicacid-functionalizedheterogeneouscatalystshavebeenevaluatedinthecatalyticdehydrationofC6monosaccharidesinto5-hydroxymethylfurfural(HMF)usingdimethylsulfoxide(DMSO)assolvent.SulfoniccommercialresinAmberlyst-70wasthemostactivecatalyst,whichwasascribedtoitshigherconcentrationofsulfonicacidsitesascomparedwiththeothercatalysts,anditgave93mol%yieldofHMFfromfructosein1h.Withglucoseasthestartingmaterial,whichisamuchmoredifficultreaction,thereactionconditions(time,temperature,andcatalystloading)wereoptimizedforAmberlyst-70byaresponsesurfacemethodology,whichgaveamaximumHMFyieldof33mol%at147¡æwith23wt%catalystloadingbasedonglucoseand24hreactiontime.DMSOpromotesthedehydrationofglucoseintoanhydroglucose,whichactsasareservoirofthesubstratetofacilitatetheproductionofHMFbyreducingsidereactions.Catalystreusewithoutaregenerationtreatmentshowedagradualbutnotverysignificantdecayincatalyticactivity.
%K Fructose
%K Glucose
%K 5-Hydroxymethylfurfural
%K Dimethylsulfoxide
%K Responsesurfacemethodology
%K Sulfonicacid
%U http://www.chxb.cn/CN/abstract/abstract21272.shtml