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281()Vol.28No.120093JournalofSouth2CentralUniversityforNationalities(Nat.Sci.Edition)Mar.2009,,,(2,430074),ZnCl2,,.,:41,ZnCl20.6,6mL,60,6h;384.9%90.6%86.7%.O621.25A167224321(2009)0120008204ChloromethylationofAlkylbenzenesXieGuangyong,LiuNa,LeiLu,AiHaitao(KeyLaboratoryofCatalysisandMaterialsScienceoftheStateEthnicAffairsCommission&MinistryofEducation,CollegeofChemistryandMaterialsScience,HubeiProvince,South2CentralUniversityforNationalities,Wuhan430074,China)AbstractMethyl,ethylandisopropylbenzylchlorideweresynthesizedbychloromethylationofthecorrespondingalkylbenzenesandpolyformaldehydecatalyzedbyZnCl2andHCl.Theeffectsoftheratioofrawmaterials,theamountofcatalyst,reactiontemperatureandtimeonthechloromethylationofalkylbenzeneswerediscussed.Undertheoptimumreactionconditions,i.e.,themoleratioofalkylbenzenestopolyformaldehydeis41,moleratioofZnCl2catalyststopolyformaldehydeis0.61,reactiontemperatureof60andreactiontimeof6hinpresenceofhydrochloricacid,theyieldsofmethyl,ethylandisopropylbenzylchloridewere84.9%,90.6%and86.7%,respectively.Keywordsalkylbenezene;polyformaldehyde;chloromethylation;alkylbenzylchloride,CH2ClCH2OHCHOCH2CNCH2NH2CH3CH2R,[1].[2,3].,,.2,,,,,,,HCl,;,[1].,,,,;,,.2008209222(19722),,,,:,E2mail:xxgyy@hotmail.com(20302011);(200750731301);(YZZ05011),,.ZnCl2,,,,,,.11.1..DF2101S(),RE252AA(),SHZ2D(III)(),.1.21.6g4.0g6mL,,60,0.2mol,,,.6h,,10%23,,,,,.:2.,,;,.2.1,,.2,,.2.1.1,,.0.05mol6mLZnCl20.66h60,1.1,,,1Fig.1Effectoftheratioofrawmaterialsonyieldsofproducts41,,84.9%;.,,,,;,,,.2.1.2[1,4],,;91,:HClZnCl2,.0.05mol6mL46h60,2.2Fig.2Effectoftheratioofcatalysttopolyformaldehydeonyieldsofproducts2,,,;,,;,,,.0.6.2.1.3B,,;;.0.05mol4ZnCl20.66h60,3.3,,,;6mL,,,,.2.1.4[5],,HCl.,.0.05mol4ZnCl20.66mL6h,3Fig.3Effectoftheamountsofhydrochloricacidonyieldsofproducts4.4Fig.4Effectofreactiontemperatureonyieldsofproducts4,,,,;,,,.60.2.1.50.05mol4ZnCl20.66mL60,5.5,,,;,,.6h.4,ZnCl20.6,6mL,60,6h.01()285Fig.5Effectofreactiontimesonyieldsofproducts84.9%.2.2,,.,1.1,,,:.,,,,,;,-(2,42),,.1Tab.1Chloromethylationofdifferentalkylbenzenesö%84.990.686.73,,.,:41,ZnCl20.6,6mL,60,6h;84.9%90.6%86.7%.,.[1].[J].,1999,11(3):2292234.[2],.[J].,2006,33(9):20222[3].[J].,2003(5):124.[4].[J].,1997,5(2):2022203.[5].[M].:,1997:6342635.111,: