1、華中師范大學(xué)碩士學(xué)位論文可逆熱色性席夫堿化合物的合成及熱色性能的研究姓名:徐漢紅申請學(xué)位級別:碩士專業(yè):有機(jī)化學(xué)指導(dǎo)教師:朱傳方2000.5.1AbstractThemainworkofthisthesisincludesthefollowingthreepartsI五e(cuò)fwstpart玨edevelopmentoftherevelsiblethermochromiccompoundswereviewedThemainclassific
2、ations,memechanismandtheapplicationofthermochromicSchiffbaseswereintroducedindetailbasedOilthereferencesandmaterialsaboutthistopicsBasedonmanyreferenceswechOOSetosynthesizefourseriescompoundsasanilsof24dihydroxyacetophen
3、one(I),sulfc’namideSchiffbases(II),PP’diaminodiphenylmethane—Sch酊bases(111)paminoazobenzene—Sehifrbases(IV)accordingtotheassumptionthattheobjectivecompoundsmusthavereversiblethermoehromism,hi曲ertransitiontemperatureandbe
4、easytosynthesizeThesecondpart:Theintermediateof24dihydroxyaceto—phenonesulphbnamide,P,P’diaminodiphenylmethanepaminoazobenzeneweresynthesizedrespectivelyKctoanilsweresynthesizedbytheimprovedmethodusingnbutanolassolventTh
5、eothercomplexeswerepreparedbythecommonmethodTheobjectivecompoundswerecharacterizedbythemeansofmP、elementalanalysis、MS、IR、UVand。HNMRspectroscopyT1lethirdpart:Weobserveddirectlythethermoehromicphenomenaofallcompoundsafterh
6、eatedbyeyesBasedonmanyexperimentaldatesobtmnedfrominvestigatingtheDSCofmostthermochromiccompounds,weanMyze。systemicallythespecificationoftheirthermaldecomposition,findtherelationbetweenthe△H(△S)ofthepeaksofmeltingandther
7、mocolourpointsandthestructureofsomecompoundsThethermochromicmechanismofketoenoltautomerismofsalicyaldehydeSehiffbaseswasprovedbydetermining13CNMRofsomethermochromiccompoundsThemaximumresonancebalancewasassignedfornonsali