Structurally Versatile Novel Photochromic Bisarylindenone and Its Acetal: Achievement of Large Cyclization Quantum Yield
作者:Kaori Morinaka、Takashi Ubukata、Yasushi Yokoyama
DOI:10.1021/ol901497t
日期:2009.9.3
Bisarylindenones and an acetal derivative, a novel thermally irreversible photochromic family based on 6π-electrocyclization with three easily modifiable functional groups, have been synthesized. 2,3-Bis(5-methyl-2-phenyl-4-thiazolyl)indenone showed photochromic back-and-forth reactions with two different visible lights. Its ethylene acetal recorded 0.81 as the photocyclization quantum yield in hexane, which
已经合成了双arylindenones和乙缩醛衍生物,这是一个基于6π电环化且具有三个易于修饰的官能团的新型热不可逆光致变色族。2,3-双(5-甲基-2-苯基-4-噻唑基)茚满酮在两种不同的可见光下显示出光致变色的来回反应。它的乙缩醛在己烷中的光环化量子产率为0.81,这是迄今为止溶液中6π电环化的已知最大值。