噁唑烷類二氯乙酰基除草劑安全劑的合成、表征與活性研究.pdf

1、東北農(nóng)業(yè)大學(xué)碩士學(xué)位論文噁唑烷類二氯乙酰基除草劑安全劑的合成、表征與活性研究姓名：張金艷申請學(xué)位級別：碩士專業(yè)：農(nóng)藥學(xué)指導(dǎo)教師：葉非2001.5.1TheStudyontheSynthesisCharacteristitionandActivityofHerbicideSafenersofDichloroacetylOxazolidineABSTRACTThesynthesisofherbicidesafenersofdichloroa

2、cetyloxazolidinewasdescribedinthispaper.Whenhydroxidesodiumactedascatalystthedichloroacetylchloridewasdirectlydroppedintothesystemaftertheintermediatewassynthesized妙thecondensationoftheisopropanolamineorethanolamineandbu

3、tanone.TheoptimumexperimentalconditionsoftheproductI(3dichloroacetyl25dimethyl2ethyl13oxazolidine)wereasfollowing:tetrachlorocarbonactedassolventtemperaturewas一]0^50Candstirringtimewaslhrtheyieldwas62.2%.Theoptimumexperi

4、mentalconditionsoftheproductII(3dichloroacetyl2methyl2ethyl13oxazolidine)wereasfollowing:trichloromethaneactedassolventtemperaturewas440Candstirringtimewaslhrtheyieldwas78.6%.Whenthecatalystwastriethylaminethewaterproduc

5、edincondensationofisopropanolamineorethanolamineandbutanonewasremovedwithbenzenebywatersegregatorthenthedichloroacetylchloridewasdropped.Theoptimumexperimentalconditionsoftheproducttwereasfollowing:benzenewassolventtempe

6、raturewas1100Candstirringtimewas3hrtheyieldwas47.3%.TheoptimumexperimentalconditionsoftheproductIIwereasfollowing:benzenewassolventtemperaturewas1一10“CandstirringtimewasOhrtheyieldwas68.3%.ThestructuresofproductIandItwer

7、econfirmedbyTLCUVIRHNMRGCMSandelementaryanalysis.AbioassaywasdevelopedfordeterminingtheinfluenceofherbicidesafenersIandIIonwheatandcornseeds.Under540mglkgbutachlorconcentrationsandIVgkgChlorsulfuronconcentrationsherbicid

8、esafenersconcentrationscorrelatedwiththeheightandfreshweightofwheatseedlingsandwiththefreshweightofrootsrootlengthandthefreshweightofshootsshootlength.Twosafenersbothhaveadefinitelybiologicalactivityandcouldprotectwheatf

9、romherbicidebutachlorinjuryandcornfromherbicideChlorsulfuroninjury.Theprotectedratesoftwosafenerstowheatfrombutachlorinjurywere60%一170%，andtocornfromChlorsulfuroninjurywere60%^110%.Postgraduate:Major:Tutor:ZhangJinyanPes