双氧水体系选择氧化苯乙烯生成苯甲醛.pdf

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1、ChineseJournalofCatalysis36(2015)721-727催化学报2015年第36卷g5期Ivcw~v．chxb．cnavallableatwww．sclencedlrect．com’scienceDirectjourrlaIhorrlepage：www．eIsevier．com／Iocate／chrljcArticleOxidationofsWrenetobenzaldehydebyp-toluenesulfonicacidusinghydrogenperoxideinthepresenceofactivatedca

2、rbonNianzheLi，YuanGao，XinxinZhang，ZhanjunYu，LeiShi，QiSunInstituteofChem&tryforFunctionalizedMaterials,FacultyofChem&tryandChemicalEngineering,LiaoningNormalUniversity,Dalian116029,Liaoninfl,ChinaARTlCLElNF0ABSTRACTArticleh&tory：Theselectiveoxidationofst)，renetobenzaldehyde

3、catalyzedbyP—toluenesulfonicacid一TsOH)inReceived25December2014thepresenceofactivatedcarbonfAC)wasinvestigatedwithH202astheoxidant．Thereactionpa·Accepted30January2015rametersofreactiontime，temperature，catalystmass，andstyrene／H202molarratioswereevalu—Published20May2015ated．A

4、strongpromotingeffectofAContheP-TsOH／H202systemwasobserved．TheappropriateratioandamountsofACandP—TsOHwereanimportantfactor．TheaciditvofP-TsOHdoesnotplayasignificantrole．P-TsOHreactedwithH202byanon．radicalprocesstooxidizestyrene．Thefunc．Keywords：StyrenetionoftheACwastoactiv

5、ateH202andtohelptheP-TsOH／H202systeminst)，reneoxidation．TheHydrogenperoxidereductionofoxygencontaininggroups(一OH，一COOH)onACbyahightemperaturetreatmentorintroductionof—S03HgroupsontoACaffectedthestvreneconversion．The—S03HgroupswereP—Toluenesulf0nicacidmoreeffectivethantheox

6、ygen—containinggroupsontheACinpromotingstyreneoxidation．A~ivatedcarbon⑥2015．DalianInstituteofChemicalPhysics，ChineseAcademyofSciences．OxidationPublishedbyElsevierB．V．Al1rightsreserved．1．1ntroductionmetal-freeheterogeneouscatalystfortheoxidationofhydro．quinonestothec0rresp0

7、ndjng1,4_benzOquin0neswithH202．TheselectiveoxidationofsrenetobenzaldehydecanbeYangetal-【16】investigatedsulfonatedcarbonasacatalystforcarriedoutbyusingatmosphericoxygen[1，2】，alkylhydroper—theoxidationofaldehydestothecorrespondingacidsbyH202．oxides[3，4】，orH202【5-9】intheprese

8、nceofanappropriateSatoetal_【17】reportedaprocedureforthesynthesisofmetal—basedcatalysttoac