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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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Novelpolystyrene-anchoredzinccomplex：Efficientcatalystforphenoloxidation
DOI: 10.1016/S1872-2067(14)60113-3, PP. 1701-1708
Keywords: Polystyrene,Schiffbase,Polymersupport,Catalysis,Zinc,Phenoloxidation
Abstract:
？Thenovelrecyclablefree-ONNO-tetradentateSchiffbaseligandN,N′-bis(2-hydroxy-3-methoxybenzaldehyde)4-methylbenzene-1,2-diamine(3-MOBdMBn)wassynthesized.Complexationofthisligandwithzinc(3-MOBdMBn-Zn)wasperformed,andthecatalyticactivityofthecomplexwasevaluated.Thepolymer-supportedanalogofthiscomplex(P-3-MOBdMBn-Zn)wassynthesized,anditscatalyticactivitywasstudied.Thesefreeandpolymer-anchoredzinccomplexeswerepreparedbythereactionsofmetalsolutionswithonemolarequivalentofunsupported3-MOBdMBnorP-3-MOBdMBninmethanolundernitrogen.Thecatalyticactivityof3-MOBdMBn-ZnandP-3-MOBdMBn-Znwasevaluatedinphenoloxidation.TheactivityofP-3-MOBdMBn-Znwassignificantlyaffectedbythepolymersupport,andtherateofphenolconversionwasaround50%forpolystyrene-supported3-MOBdMBn.Theexperimentalresultsindicatedthatthereactionratewasaffectedbythepolymersupport,andtherateofphenolconversionwas1.64μmol/(L·s)inthepresenceofpolystyrene-supported3-MOBdMBn.
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