Hong Juan, Xiao Xuxian, Liu Haoliang, Fu Lin, Wang Xin-Chang, Zhou Long, Wang Xiao-Ye, Qiu Zijie, Cao Xiao-Yu, Narita Akimitsu, Müllen Klaus, Hu Yunbin
College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China.
Chem Commun (Camb). 2021 Jun 7;57(45):5566-5569. doi: 10.1039/d1cc01631h. Epub 2021 May 10.
An X-shaped double [7]heterohelicene 1 bearing four thiadiazole units is synthesized by regioselective cyclodehydrogenation. Enantiopure 1 exhibits excellent chiroptical properties with an impressive absorption dissymmetry factor of up to 0.027, as well as a compact π-stacked homochiral assembly which is unprecedented in the realm of double helicenes.
通过区域选择性环脱氢反应合成了一种带有四个噻二唑单元的X形双[7]杂并苯1。对映体纯的1表现出优异的手性光学性质，吸收不对称因子高达0.027，令人印象深刻，同时还具有紧密的π堆积同手性组装结构，这在双并苯领域是前所未有的。
