Novel Dithienylethenes with Extended π-Systems: Synthesis by Aldol Condensation and Photochromic Properties
作者:Kai Altenhöner、Jan-Hendrik Lamm、Jochen Mattay
DOI:10.1002/ejoc.201000721
日期:2010.11
2-bis(5-formyl-2-methylthiophen-3-yl)cyclopentene with a large variety of acyl compounds. All synthesized photoswitches can be reversibly converted into the closed form by irradiation with visible light. The photochromic properties of nine new dithienylethenes are discussed.
描述了对称的 it-extended dithienylethene 衍生物的简便和立体选择性途径。该路线的关键步骤是 1,2-双(5-甲酰基-2-甲基噻吩-3-基)环戊烯与多种酰基化合物的羟醛缩合反应。所有合成的光开关都可以通过可见光照射可逆地转换为闭合形式。讨论了九种新型二噻吩乙烯的光致变色特性。