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1、本论文利用了液相色谱，核磁共振，质谱等分析方法对每一步的中间体以及最终产品进行了纯度测定及结构表征。论文考察了原料的摩尔比，反应时间，反应温度，反应溶剂等因素对反应纯度和收率的影响。该工艺具有原料廉价易得，低成本，操作简单，安全性能好，收率高等特点，具有较好的工业化前景。关键词：双苯噁呼酸，氯代月亏基乙酸乙酯，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
