首页> 外文期刊>Chemistry: A European journal >Liquid-crystalline and electron-dericient coronene oligocarboxylic esters and imides by twofold benzogenic Diels-Alder reactions on perylenes
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Liquid-crystalline and electron-dericient coronene oligocarboxylic esters and imides by twofold benzogenic Diels-Alder reactions on perylenes

机译:two的二重苯并苯并Diels-Alder反应对液晶和电子衍生的苯并二氢低羧酸酯和酰亚胺

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摘要

Alkyl esters, imides and imido-esters of coronene-tri-, -tetra-and -octacarboxylic acids are accessible by a twofold oxidative benzogenic Diels-Alder reaction. Alkyl acrylates add to perylene, and maleic alkyl imides react twice with perylene as well as with perylene-tetracarboxylic tetraesters. Coronenes substituted with a greatly variable number of electron-withdrawing substituents are thus accessible, and di- and tetraimide derivatives are shown to be very pronounced electron-acceptor materials. The tri-and tetraalkyl esters and imidoesters self-assemble into columnar liquid-crystalline phases.
机译:苯并三-,-四-和-八羧酸的烷基酯,酰亚胺和亚氨基酯可通过双重氧化苯并苯并的Diels-Alder反应来获得。丙烯酸烷基酯加到per中,而马来烷基酰亚胺与per以及per-四羧酸四酯反应两次。因此可以容易地获得被大量吸电子取代基取代的Coronenes,并且二酰亚胺和四酰亚胺衍生物被证明是非常显着的电子受体材料。三和四烷基酯和亚氨基酯自组装成柱状液晶相。

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