雙苯并噁唑二苯乙烯熒光增白劑及其中間體合成研究.pdf

1、湘潭大學碩士學位論文雙苯并噁唑二苯乙烯熒光增白劑及其中間體合成研究姓名：易兵申請學位級別：碩士專業(yè)：有機化學指導教師：林原斌2001040111lefluorescentbfightemzdefivatedfromstilbeneiSoneofthemostimportantfluorescentwhiteningagents，whichisfamousforitslargekindsandproducingcapacityinfluo

2、rescentwhiteningagentindustryAtpresentstilbenederivativesaccountforoverpercentofeightyintotalproducingcapacityofinfluomscentwhiteningagents，whichareextensivelyusedforwhiteningtextile，paperdetergemandplasticsTmStopichasst

3、udiedthesynthesisofbis—benzoxazolyl—stilbenefluorescentbrighteneranditsintermediates田旭kindoffluorescentbrightenerbelongstoflatones，andhasextremelyhighbrighteningstrengthandbetterapplicationpropertyusedinsyntheticfiberand

4、plastics，especiallyinpolyesterfiberNowadaysthereSOtlrceoftheproductsmainlydependsonimportinOUrcountrySoitpossessedgoodbenefitandeconomicvaluetoexploreanewpathforsynthesizingtheproductsTmSpaperhasreviewedthesynthesisdevel

5、opmentofbis—benzoxazolylstilbeneinpep，entyearsandanalysedtheirmeritsaswellasshortcomingsandfeasibilityTheresultshowsthatallthesynthesismethodscomprisethecondensationreactionofstilbene44’bisformicacidwithoaminophenolorits

6、deprivativesHowever硼1esynthesisconditionsofstilbene441一bisformicacidissevereTheproductyieldislowerandthecostishigherBesidesthat，largequantityofpoisonoussolventiSusedinthecondensationreaction，whichmustberecoveredandreutil

7、izedFromthementionedabove，wehavedesignedthefullsynthesisrouteforbisbenzoxazolylstilbenewhichstartsfromthebasicorganicmaterials，andhighlightedsmdyingitsunitereactionsTheoptimaltechnologyconditionshavebeendeterminedThesynt

8、hesizedintermediatesandproducthavebeenidentifiedbyIR，1Hf、m偶andelementanalysisetc111eresultsagreetodocumentsayingandactualsamplesMeanwhLie，newsynthesisrnethodsforsomeintermediateshavebeenstudiedKeywords：bisbenzoxazolylsti