29957.有機(jī)高價(jià)碘鹽化合物誘導(dǎo)的nn鍵活化反應(yīng)研究

1、有機(jī)高價(jià)碘鹽化合物誘導(dǎo)的NN鍵活化反應(yīng)研究學(xué)位論文完成日期：指導(dǎo)教師簽字：答辯委員會(huì)成員簽字：；鬻瓣I之ESEARCHONN—NBONDACTI、後T10NREACTIONINDUCEDBYORGANICHYPER＼後LENTIODINESAITSABSTRACTInrecentyears，organichypervalentiodoniumsaltshavebeenwidelyappliedandbecomethemostactive

2、researchfieldinmodemorganicsynthesischemistryduetotheircharacteristicsofeasypreparation，mildreactioncondition，highselectivityandenvironmentalfriendlyfeatureInparticularly，thediaryliodoniumsaltsusuallyaffordpowerfularylgr

3、ouptoreactwithawiderangeofnucleophilestosynthsizevaluablevariousaromaticcompoundsBasedonourgroup’Spreviousworkabouttheresearchofdiaryliodoniumsalts，exceptforthearylationability，weenvisionthattheorthocarbonatomofthearylgr

4、ouphascertainnucleophilicabilitytorealizesomecyclizationandrearrangementreactionwithhighefficiencyandhighregioselectivityIncomparisontoinactivepyridine，pyridineNamidatesshowmorenucleophilicabilityandhascertainelectrophil

5、icabilityaswellSoinducedbydiaryliodoniumsalts，viathearylationofamidatenitrogen，theorthocarbonatomofthearylgroupCanattackthepyridinenitrogenionsandrearrangetotheNNbondcentretorealizeNNbondactivationInthisthesis，pyridineNa

6、midatessubstratesinducedbydiaryliodoniumsaltscatalyzedby10％Cu(OTf)2inDCEsolventcouldafford271(Naryl4methylphenylsulfonamido)pyridin1iumderivativesand21l(2(4methylphenylsulfonamido)aryl)pyridin1iumderivativesrespectivelyt

7、hroughcontrollingdifferentreactiontemperaturesThismethodfeaturesmildreactioncondition，highyieldsandsimpleopermionInthispaper，thearylationcompoundwasprovedtobetheintermediateofthefinalrearrangedproductthroughheatingrearra