comprising a cyclopentene ring as an ethene bridge was developed based on reduction of 2,3-diaryl(hetaryl)cyclopent-2-en-1-ones through an ionic hydrogenation reaction. The method provides access to unsymmetrical photoswitchable diarylethenes containing benzene, thiophene, or azoles (thiazole, oxazole, imidazole) as aromatic moieties in 40–71% yields. Diarylethenes comprising two heterocyclic moieties show
                                    基于通过离子氢化反应还原2,3-二芳基(杂芳基)环戊-2-烯-1-酮,开发了一种简便的合成方法,用于合成包含
环戊烯环作为
乙烯桥的光敏二
芳烃。该方法提供了不对称的光开关二
芳烃,其中苯,
噻吩或唑类(
噻唑,
恶唑,
咪唑)为芳香族部分,收率为40-71%。包含两个杂环部分的双
芳烃显示出典型的光致变色特性,在蓝色区域(黄色光致变色剂)具有最大的光致吸收形式。