資源描述：
《雙苯噁唑酸的合成工藝研究》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在工程資料-天天文庫(kù)。
1、本論文利用了液相色譜，核磁共振，質(zhì)譜等分析方法對(duì)每一步的中間體以及最終產(chǎn)品進(jìn)行了純度測(cè)定及結(jié)構(gòu)表征。論文考察了原料的摩爾比，反應(yīng)時(shí)間，反應(yīng)溫度，反應(yīng)溶劑等因素對(duì)反應(yīng)純度和收率的影響。該工藝具有原料廉價(jià)易得，低成本，操作簡(jiǎn)單，安全性能好，收率高等特點(diǎn)，具有較好的工業(yè)化前景。關(guān)鍵詞：雙苯噁呼酸，氯代月虧基乙酸乙酯，二苯乙烯，合成STUDYONTHESYNTHESISOFISOXADIFEN-ETHYLAbstractSafenerisknownasantidotesandprotectiveagentaswell;anditisonekindofsubstancestoredu
2、ceherbicideinjurytocrops;thereby,thesafenerexertapositiveimpactinincreasingsafetyandimprovingtheeffectivenessofweedcontrolcompoundcrops.Themaineffectofasafeneristoofferagoodselectivitypointwhichherbicidescanselectbetweenweedandcrop.Itmeansnophytotoxicitytothecropswhileremovingweeds.Thesecu
3、rityagentformeteredherbicidesinsomegivenstandardnotonlycanmakeabreezetoremoveweeds,butalsoenhancetheabilityofherbicide-resistantcropinjury.Isoxadifenisanisoxazoleherbicidesafenersforpreventingcropsfromherbicidewiththeexcellenteffect;moreover,therearemanymerits,suchashighefficiency,lowtoxic
4、ity,environmentallyfriendly.Accordingtotheadvantagesofgrowingdemandinthedomesticmarket,itissignificanttodevelopthestudyandresearchonIsoxadifen.Theresearchofthisessaymainlydescribesthesynthesisprocessingof4,5-dihydro-5,5?diphenyl?l,2-Oxazole?3?carboxylatewiththegreendesign,environmentallyfi
5、dendlyandproneprocessforindustrialhiproductionline?Glycinewhichischeapandavailableisarawmaterial,fromesterificationandoximation,toformtheintermediateethylchlorooxime;andregardingbenzophenoneasastartingrawmaterialwithreactionofalcoholization,throughtheprocessingofDehydrationtoformanimportan
6、tpharmaceuticalintermediatestilbene;finally,industrycanobtainthetargetproductionwiththereactionof1,3-dipolarcycloadditionbetweentheethylchlorooximeandStilbene?Inthispaper,ananalysismethodbyusingliquidchromatography,nuclearmagneticresonanceandmassspectrometry,etc.isusefulforeachstepoftheint
7、ermediatesandfinalproductpuritymeasurementandstructuralcharacterization.Thefactorsinvestigatedinthisarticleincludethemolarratioofrawmaterial,reactiontime,reactiontemperature,reactionsolventonthepurityandyieldofthereaction.Therearemanyadvantagescontainingrawmat
