Photodimerization of azaanthracene derivatives mediated by cucurbit[10]uril  

作　　者：Huaxing Li Xianchen Hu Fengbo Liu Dongdong Sun Yong Wu Simin Liu 

机构地区：[1]School of Chemistry and Chemical Engineering,Wuhan University of Science and Technology,Wuhan 430081,China [2]The State Key Laboratory of Refractories and Metallurgy,Institute of Advanced Materials and Nanotechnology,Wuhan University of Science and Technology,Wuhan 430081,China

出　　处：《Chinese Chemical Letters》2022年第12期5124-5127,共4页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.21871216).

摘　　要：Challenges of achieving efficient photodimerization of azaanthracene derivatives remain due to the low selectivity and slow reaction rate.In this paper,cucurbit[10]uril(CB[10]),with the largest rigid and hydrophobic cavity among CB[n]s,was used to affect the photodimerization reaction of four water-soluble 1-(2-)substituted azaanthracene derivatives(1-4).It revealed that 1-4 could form 1:2 host-guest complexes with CB[10]in aqueous solution.Irradiation of 1 in the presence of 0.5 equiv.of CB[10]selectively produced a head-to-tail(anti-HT)photodimer product.As for 2-4,CB[10]acted as a nanoreactor accelerating their photodimerization reaction in water.Our results suggest that photodimerization of azaanthracene derivatives could be promoted by the CB[10]-based host-guest strategy with high efficiency and selectivity.

关 键 词：Supramolecular nanoreactor uril Azaanthracene PHOTODIMERIZATION Host-guest interaction 

分 类 号：O641.3[理学—物理化学] TB34[理学—化学]