112778-70-8Relevant academic research and scientific papers
Diverse synthesis of pyrimido[1,2-a]benzimidazoles and imidazo[2,1-b]benzothiazoles via CuI-catalyzed decarboxylic multicomponent reactions of heterocyclic azoles, aldehydes and alkynecarboxylic acids
Wu, Jiarong,Luo, Huan,Wang, Tao,Sun, Huaming,Zhang, Qi,Chai, Yonghai
, p. 1052 - 1063 (2019)
We have developed a straightforward approach to diverse synthesis of 2,3-, 2,4-disubstituted pyrimido [1,2-a]benzimidazoles, 2,4,10-trisubstituted 2,10-dihydropyrimido [1,2-a]benzimidazoles and 2,3-disubstituted imidazo [2,1-b]benzothiazoles via multicomp
Ultrasound assisted one-pot, three-components synthesis of pyrimido[1,2-a]benzimidazoles and pyrazolo[3,4-b]pyridines: A new access via phenylsulfone synthon
Saleh, Tamer S.,Eldebss, Taha M.A.,Albishri, Hassan M.
experimental part, p. 49 - 55 (2012/04/10)
A simple, facile, efficient and three-components procedure for the synthesis of pyrimido[1,2-a]benzimidazoles and pyrazolo[3,4-b]pyridines utilizing phenylsulfone synthon, under ultrasonic irradiation was developed.
A Simple Regioselective Synthesis of Pyrimidobenzimidazoles
Tseng, Shin-Shyong,Epstein, Joseph W.,Brabander, Herbert J.,Francisco, Gerardo
, p. 837 - 843 (2007/10/02)
2-Aminobenzimidazoles were reacted with enaminones in acetic acid to give pyrimidobenzimidazoles.With a substituted enaminone only one regioisomer was obtained.Structural assignments based on nmr and uv spectroscopy are presented.Possible pathways
