3,4-Ethylenedioxythiophene Functionalizationed with Tetrathiafulvalene: Synthesis and Selective Esterification
作者:Lei Zhang、Changzhi Wu、Chengyun Wang、Hujin Zuo、Yongjia Shen
DOI:10.1002/jhet.1834
日期:2014.9
dimethyl 3,4‐dihydroxythiophene‐2,5‐dicarboxylate (1), which were isomers and difficult to separate. When they were esterified with tetrathiafulvalene carried carboxylic acid group, only 3,4‐(hydroxymethyl‐ethylenedioxy)thiophene (4) could be esterified. No such selectivity was observed when the isomers were esterified by lauric acid and benzoic acid, respectively.
由3,4-二羟基噻吩-2,5-二羧酸二甲酯(1)合成3,4-(羟甲基-乙二氧基)噻吩(4)和3,4-(2'-羟丙二氧基)噻吩(4' ')是异构体,很难分离。当它们被四硫富瓦烯带有的羧酸基团酯化时,只能将3,4-(羟甲基-乙二氧基)噻吩(4)酯化。当异构体分别被月桂酸和苯甲酸酯化时,没有观察到这样的选择性。