吡嗪類(lèi)化合物的合成及表征

1、西北大學(xué)碩士學(xué)位論文吡嗪類(lèi)化合物的合成及表征姓名：吳紅玲申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：無(wú)機(jī)化學(xué)指導(dǎo)教師：張維平20090605AbstractInthispapernewtransitionmetalolefinpolymerizationcatalystswithbettercatalyticcapacityhavebeenintroducedbasedonBrookhartbis(imino)pyridyl—transitionmetal

2、catalystIthasbeendemonstratedbySOmanyresultsthatthecatalyststructureisthekeytothepolymerizationactivityArelativelystraightforwardmodificationtobis(imino)pyridylligandsisteplacethepyridinewithpyrazineThemainstudiesareasfe

3、llows：With2，3，5，6tetramethylpyrazineasthestartingmaterial，3，6dimethylpyrazine一2，5dicarboxylicacidanddiethyl3，6dimethyl2，5pyrazinedicarboxylatewereobtainedingoodyieldsthroughaquitenovelandstraightforwardmethodAllthecompou

4、ndswerecharacterizedbyelementalanalysis，IRandUV，whiletwomolecularstructureswerecharacterizedbyXraysinglecrystaldiffractionFourcomplexeswereobtainedthroughhydrothermalreactioninaquasystemandcharacterizedbyelementalanalysi

5、s，IRandUVAnovelcompounddiethyl3，6dimethyl2，5一pyrazinediacidamidehavebeenobtainedbyammonolysisofesterAtthesametime，themechanismofammonolysisofesterhasbeeninvestigatedFourcomplexeswereobtainedthroughhydrothermalreactionina

6、quasystemandallcompoundswerecharacterizedbyelementalanalyses，IRandUVAnewcompoundofbenzimidazolederivativeWasobtainedbythecondensationreactionof3，6Dimethylpyrazine一2，5dicarboxylicacidandophenylenediamineundermicrowavewith

7、outanysolventinwhichartificialzeoliteaandsilicagelasthecatalystsandcatalyticamountsofDMFWasusedastheenergytransfermediumThecompotmdWascharacterizedbyelementalanalyses，IRUVand1HNMRThemechanismwasstudiedhereThemethodofmicr

8、owaveirradiationinsolventfreeconditioniSbetterthanothersWith3，6Dimethylpyrazine2，5dicarboxylicacidasthestartingmaterial，fivenovelaromaticaminesincorporatedcarboxamidepyrazinehavebeensynthesizedbychlorinationandammonolysi