photoinduced isomerization of a series of arylidene heterocycles 1. The photoreaction mechanism was investigated by a combined UV–vis/photo-NMR spectroscopic study, and we showed that Ar-TZDs exhibit a positive P-type photochromism, which limits their isomerization efficiency. By exploring the solvatochromism in a series of solvents, the conditions favoring the conversion toward one or the other stereoisomer
我们在此报告了一系列亚芳基杂环1的光致异构化。通过结合 UV-vis/photo-NMR 光谱研究研究了光反应机理,我们发现 Ar-TZD 表现出正 P 型光致变色,这限制了它们的异构化效率。通过探索一系列溶剂中的溶剂致变色,研究了有利于向一种或另一种立体异构体转化的条件,特别是通过选择合适的波长。最后,通过方便地制备各种稠合杂环
喹啉并以良好的总产率提出了该光异构化研究的扩展。