基于稠合噻吩的苯并噻唑衍生物的制备及紫外光谱.pdf

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1、2015年7月化学研究427第26卷第4期CHEMICALRESEARCHhttp：／／hxya．cbpt．cnki．netSynthesisandUV—VisspectraofbenzothiazolederivativesbasedonfusedthiopheneLIChunli，WANGHua(KeyLabforSpecialFunctionalMaterialsofMinistryofEducation，HenanUniversity，Kaifeng475004，Henan，China)Abstract：T'hreekindsoffusedthiophenesubstit

2、utedbenzothiazolederivitives(2b，2c，2d)weresynthesizedbyreactingfusedthiophenealdehydeswithortho—aminobenzenethiolinyieldof44，35and42，respectively．TheirstructureswereconfirmedbyNMR，MS，HRMSandIR．TheirUV—Visspectrarevealedstrongerelectrondonatingproperty．1argerconjugatedsystemandbetterplanarityo

3、ffusedthiopheneleadstolongermaximumabsorption．Thedetec—tionofthermalstabilityshowedcompounds2b，2c，2dpossessinghighdecompositiontempera—tures．Keywords：synthesis；benzothialolederivatives；fusedthiophene；UV—VisspectraCLCnumber：O627．12Documentcode：AArticleID：]OO8一]01](20】5)04—0427—06基于稠合噻吩的苯并噻唑衍生物

4、的制备及紫外光谱李春丽，王华(河南大学特种功能材料教育部重点实验室，河南开封475004)摘要：通过醛与邻氨基苯硫酚缩合反应制备了三种基于不同结构的二噻吩并噻吩的苯并噻唑衍生物2b，2c与2d，产率分别为44％，35和42．并利用核磁共振谱，质谱，高分辨质谱及红外光谱对其结构进行了验证．紫外光谱研究表明随着二噻吩并噻吩的平面性增强，供电子性增强，共轭体系增大，对应苯并噻唑衍生物的最大吸收波长逐渐发生红移．热重分析表明化合物2b，2c与2d均有较高的热分解温度．关键词：合成；苯并噻唑衍生物；稠合噻吩；紫外一可见光谱Benzoth1azolesareapartO{themolecul

5、arwhile，syntheticstrategiesofsubstitutedbenzothb—structureofalargenumberofnaturalproducts．azolehavealsobeenwidelydeveloped，whichin—Benzothiazo1ederivatives。whichhavevaluableark—cludessolvent—free，solidphase，ionicliquid，mi—tifungal，antitumor，andpharmacologicalactivi—crowaveassistedt．Jacobson’S

6、cyclizationofthio—ties，arestillofgreatscientificinterestnowa—benzanilides[．Suzukicoupling[andtheconden—days[．Recently，substitutedbenzothiazolesaresationof2一aminobenzenethio1withnitrile．aide—beingusedinthefieldoforganicfunctionalmateri—hyde，acid，acidchloridesoresters[]underdiffer-一als，e．g．，non

7、linearopticalmaterials[一b]。organicentreactionconditionsE。c一．However．themostlight-一emittingdiodes(OIEDs)[]andorganicpopularandimportantoneiscondensation-dehy—drationof2-aminothiophenolwithcarboxylicacidsthin—filmtransistors(OTFTs)[，8f．Mean—ora