30489-66-8Relevant academic research and scientific papers
Cu-Catalyzed Regioselective C-H Alkylation of Benzimidazoles with Aromatic Alkenes
He, Yu-Ting,Mao, Yang-Jie,Hao, Hong-Yan,Xu, Zhen-Yuan,Lou, Shao-Jie,Xu, Dan-Qian
supporting information, p. 8250 - 8255 (2020/11/18)
Herein we report a novel Cu-catalyzed regioselective C2-H alkylation of benzimidazoles with aromatic alkenes. The reaction features exclusive regioselectivity and broad substrate scope in the intermolecular alkylation of benzimidazoles with terminal and i
A ratiometric fluorescent probe for fluoride ion based on naphthoimidazolium receptor
Zou, Chunyan,Qiao, Qinglong,Zhao, Miao,Mao, Deqi,Wang, Danfeng,Feng, Lei,Cui, Jingnan,Xu, Zhaochao
, p. 43746 - 43751 (2015/02/19)
Three imidazolium derivatives 3-5 were designed and synthesized, in which naphthaimidazolium group acted as both fluorophore and anion receptor. Compound 3 exhibited high selectivity for F- in CH3CN solution over all the other anions and acted as a ratiometric fluorescent probe for F- with an enhanced blue-shift in emission. However, the fluorescence of compound 4 and 5 displayed a quenched blue-shift in emission with fluoride ion and could be quenched by some other tested anions, where the degree of quenching depended on the characteristic of the anions. More importantly, only compound 3 could detect F- in DMSO-water (955, v/v) aqueous solution ratiometrically. Based on the analysis of the results of 1H-NMR and 19F-NMR, it was deduced that compound 3 bound with F- mainly by the force of hydrogen bonding, while compound 4 and 5 coordinated with F- through electrostatic interaction. This journal is
