885272-74-2Relevant articles and documents
Synthesis of C3-Cyanomethylated Imidazo[1,2- a ]pyridines via Ultrasound-Promoted Three-Component Reaction under Catalyst- and Oxidant-Free Conditions
Wu, Qingguo,Yang, Haifeng,Zhang, Jian,Zhang, Jie,Zhang, Yufeng
supporting information, p. 264 - 268 (2022/02/05)
An efficient synthesis of C3-cyanomethylated imidazo[1,2-α]pyridines via ultrasound-promoted three-component reaction under catalyst-free, oxidant-free, and mild conditions has been developed. A series of C3-cyanomethylated imidazo[1,2-α]pyridines were rapidly prepared with satisfactory yields and good functional group compatibility. This strategy cloud also be applied to the synthesis of zolpidem and alpidem in short steps.
FeCl3-catalyzed C-3 functionalization of imidazo[1,2-a]pyridines with diazoacetonitrile under oxidant- and ligand-free conditions
Chen, Guang,Fan, Xuesen,Hu, Bing,Li, Bin,Zhang, Xinying
supporting information, (2020/03/04)
A facile synthesis of 2-(imidazo[1,2-a]pyridin-3-yl)acetonitriles via FeCl3-catalyzed site-selective C(sp2)-H alkylation of imidazo[1,2-a]pyridines with diazoacetonitrile is presented. This new method features with an environmentally benign catalyst, easily obtainable substrates, and oxidant- and ligand-free reaction conditions. Moreover, the importance of the products thus obtained is showcased by their ready transformation into some synthetically and pharmaceutically interesting products with good efficiency.
Visible-Light-Induced Regioselective Cyanomethylation of Imidazopyridines and Its Application in Drug Synthesis
Chang, Qing,Liu, Zhengyi,Liu, Ping,Yu, Lu,Sun, Peipei
, p. 5391 - 5397 (2017/05/24)
3-Cyanomethylated imidazopyridines were synthesized via a visible light-promoted reaction of imidazopyridines with bromoacetonitrile or iodoacetonitrile catalyzed by fac-Ir(ppy)3 under mild conditions. For the substrates with various substituents on benzene or pyridine ring, the reaction proceeded smoothly to give the corresponding products in moderate to good yields. The synthetic utility of this visible-light-induced reaction has been illustrated in the efficient synthesis of zolpidem and alpidem.