3,4‐Ethylenedioxythiophene Functionalizationed with Tetrathiafulvalene: Synthesis and Selective Esterification |
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| Authors: | Lei Zhang Changzhi Wu Chengyun Wang Hujin Zuo Yongjia Shen |
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| Institution: | Key Laboratory for Advanced Materials, Institute of Fine Chemicals, East China University of Science and Technology, Shanghai, China |
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| Abstract: | 3,4‐(Hydroxymethyl‐ethylenedioxy)thiophene ( 4 ) and 3,4‐(2′‐hydroxypropylenedioxy)thiophene ( 4' ′) were synthesized from 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. |
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