107165-95-7Relevant academic research and scientific papers
Synthesis of imidazo[1,2-a]pyridines and pyrido[1,2-a]pyrimidines in water and their snar cyclizations
Chanu, Langpoklakpam Gellina,Singh, Thokchom Prasanta,Jang, Yong Ju,Yoon, Yong-Jin,Singh, Okram Mukherjee,Lee, Sang-Gyeong
, p. 994 - 1000 (2014/05/06)
Synthesis of tetrahydroimidazo[1,2-a]pyridines and tetrahydropyrido[1,2-a] pyrimidines by a one-pot and three component reaction of α-oxoketenedithioacetals, diamines and DMAD in water has been described. Different routes for accessing the desired compoun
Reactions of ketene aminals with N-arylmaleimides and dimethyl acetylenedicarboxylate, a direct pathway to derivatives of pyrrolo[1,2-a] imidazole and imidazo[1,2-a]pyridine
Orlov,Kharchenko, Yu. V.,Gella,Omel'chenko,Shishkin
, p. 1204 - 1212 (2013/03/13)
The addition of N-arylmaleimides or dimethyl acetylenedicarboxylate to 2-imidazolideneacetophenones proceeds at the most nucleophilic carbon atom of the acetophenone derivatives and results in a rearrangement to give derivatives of 5-oxo-2,3,5,6-tetrahydro-1H-pyrrolo[1,2-a]imidazole or imidazo-[1,2-a] pyridine, respectively. In the case of 2-imidazolidenecyclopentanones and 2-imidazolidine-cyclohexanones, the reaction terminates upon the addition of imide or dimethyl acetylenedicarboxylate at the nitrogen atom of the imidazoline system.
SYNTHESIS OF IMIDAZOPYRIDINE AND PYRIDOPYRIMIDINE DERIVATIVES BY THE ADDITION AND CYCLOCONDENSATION REACTIONS OF KETENAMINALS CONTAINING IMIDAZOLIDINE OR HEXAHYDROPYRIMIDINE RING WITH ESTERS OF α,β-UNSATURATED ACIDS
Huang, Zhi-tang,Liu, Zhi-rong
, p. 2247 - 2254 (2007/10/02)
Ketenaminals 1 react with methyl propiolate, methyl acrylate and dimethyl acetylenedicarboxylate to afford the fused imidazopyridines and pyridopyrimidines 3,4 and 5, respectively.In some cases, the intermediate addition products 2 and 6b ar
