In recent years, the synthetic potential of the photorearrangement of diarylethenes leading to naphthalene and phenanthrene derivatives via a cascade process of photocyclization/[1,9]-H shift has been demonstrated. In this work, the influence of various substituents on the efficiency of the photorearrangement of diarylethenes (DAEs) of the furanone series containing an additional π-system has been explored. It was found that electron-withdrawing substituents contribute only to the photocyclization process, while electron-donating groups (methoxy or dialkylamino groups) lead to E/Z-isomerization. However, in the case of dialkylamino substituted diarylethenes, the addition of a strong Brønsted acid promotes the photorearrangement, but prevents E/Z isomerization.

近年来，已经证明了通过光环化/ [1,9] -H转换的级联过程，导致萘和菲衍生物的二芳烃的光重排的合成潜力。在这项工作中，已经探索了各种取代基对含有额外的π-系统的呋喃酮系列的二芳烃（DAE）的光重排效率的影响。发现吸电子取代基仅有助于光环化过程，而给电子基团（甲氧基或二烷基氨基）导致E / Z-异构化。但是，对于二烷基氨基取代的二芳烃，添加强布朗斯台德酸会促进光重排，但会阻止E / Z 异构化。