6200-59-5Relevant academic research and scientific papers
Copper- A nd DMF-mediated switchable oxidative C-H cyanation and formylation of imidazo[1,2-: A] pyridines using ammonium iodide
Ji, Fanghua,Jiang, Guangbin,Li, Xuan,Liu, Meichen,Wang, Shoucai,Zang, Jiawang
, p. 9100 - 9108 (2020/11/27)
The cyanation and formylation of imidazo[1,2-a]pyridines were developed under copper-mediated oxidative conditions using ammonium iodide and DMF as a nontoxic combined cyano-group source and DMF as a formylation reagent. Mechanistic studies indicate that the cyanation of imidazo[1,2-a]pyridines proceeds through a two-step sequence: Initial iodination and then cyanation. The cyanation has a broad substrate scope and high functional group tolerance, and can be safely conducted on a gram scale. A novel copper-mediated formylation using the widely available DMF as the formylation reagent and environmentally friendly molecular oxygen as the oxidant has also been developed. This protocol also provided a convenient approach for the synthesis of clinically used saripidem. This journal is
Convenient two-step one-pot synthesis of 3-substituted imidazo[1,2-a]pyridines and imidazo[1,2-b]pyridazines
Fan, Hongli,Li, Fenghai
, (2018/05/23)
Abstract: A convenient and novel two-step one-pot method for the synthesis of 3-substituted imidazo[1,2-a]pyridines and 3-substituted imidazo[1,2-b]pyridazines was developed through the reaction of heterocyclic amines and N,?N-dimethylformamide dimethyl a
A practical two-step synthesis of imidazo[1,2-a]pyridines from N-(prop-2-yn-1-yl)pyridin-2-amines
Sucunza, David,Samadi, Abdelouahid,Chioua, Mourad,Silva, Daniel B.,Yunta, Cristina,Infantes, Lourdes,Carmo Carreiras,Soriano, Elena,Marco-Contelles, Jose
supporting information; experimental part, p. 5043 - 5045 (2011/06/10)
The Sandmeyer reaction of differently C-2 substituted N-(prop-2-yn-1- ylamino)pyridines is an efficient, mild, new and practical method for the stereospecific synthesis of (E)-exo-halomethylene bicyclic pyridones bearing the imidazo[1,2-a]pyridine heteroc
