作者:Xiaodong Si、Yuanyuan Jia、Xinqi Luan、Luo Yang、Yong Pei、Wang Zhou
DOI:10.1002/anie.201812090
日期:2019.2.25
designed and synthesized to gain insight into the oxa‐6π electrocyclic reaction of cis,cis‐1,8‐dioxatetraene for the first time. The stability of the 1,8‐dioxatetraene intermediate is governed by its steric congestion and can be fine‐tuned through modification of the backbone structure, leading to the reactivity differences in the 6π electrocyclic reaction and the emergence of photochromic properties.
最初设计并合成了多种基于苯并呋喃酮的螺异异色酮,以首次深入了解顺式,顺式-1,8-二氧杂环丁烷的oxa-6π电环反应。1,8-二氧杂戊四烯中间体的稳定性受其空间拥挤控制,可以通过修饰主链结构进行微调,从而导致6π电环反应的反应性差异和光致变色特性的出现。