有机电发光苯乙烯二聚体及其衍生物的合成研究

在碱性条件下，磷酸二甲基-2（3，4）取代氰基苄酯与2,5-二（2-乙基己氧基）1，4-苯二甲醛缩合得到共轭2，5-二（1（Z）-2（3，4）-氰基苯乙烯基）-1，4-二（2-乙基己氧基）苯（1a-c），1，4-二（2-乙基己氧基）-2，5-二乙氰基苯与甲氧基（或硝基）取代苯甲醛缩合得到2，5-二（1（Z）1-氰基-2（3，4）-取代苯乙烯基）-1，4-二（2-乙基己氧基）苯（2a-d），2，5-二（2-乙基己氧基）-1，4-苯二甲醛与取代苯乙氰在碱催化下缩合得到2，5-二（1（Z）2-氰基2（3，4）取代苯乙烯基）1，4-二（2-乙基己氧基）苯（3a-f）．经IR，1^HNMR，13^、CNMR、和MS确定了合成的一系列PPV共轭三聚体的结构，并通过荧光光谱比较了其发光效率．

Study on the Synthesis of Derivative of Organic Electroluminescent p-Phenylenevinylene Dimmer

Under basic condition, the conjugated 2,5-di-(1(Z)- 2(3,4)-cyanophenylethylene)-1, 4-di- (2-ethylhexyloxy) benzene(1a-c) was prepared from 2(3, 4) cyanobenzyl diethyl phosphate and 2,5-di-(2-ethylhexyloxy) -1, 4-benzodialdehyde, the condensation of 1, 4-di-(2-ethylhexyloxy) -2, 5-diacetonitrile with the methoxy(or nitro) substituted benzoaldehyde give the conjugated 2,5-di-(1(Z)-1-cyano- 2(3,4) -methoxy(or nitro) phenylethylene)-1,4-di- (2-ethylhexyloxy) benzene(2a-d). The 2,5-di-(1(Z)-2-cyano-2(3,4)-methoxy(or nitro) phenylethylene)-1,4-di- (2-ethylhexyloxy) benzene was obtained from 2,5-di-(2-ethylhexyloxy)-1, 4-benzodialdehyde and substituted tolunitrile. The structure of series of derivatives of conjugated p- phenylenevinylene dimmer was characterized by IR,1HNMR,13CNMR and MS spectral. The fluorescent efficiency was compared by fluorescence spectrum.