79889-77-3Relevant articles and documents
Sodium Salts (NaI/NaBr/NaCl) for the Halogenation of Imidazo-Fused Heterocycles
Semwal, Rashmi,Ravi, Chitrakar,Kumar, Rahul,Meena, Ramavatar,Adimurthy, Subbarayappa
, p. 792 - 805 (2019/01/24)
We report herein an effective method for the halogenation of imidazo-fused heterocycles using readily available sodium salts (NaCl/NaBr/NaI) as halogen source and K2S2O8 (or) oxone as promoter. A variety of C-3 halogenated imidazo[1,2-a]pyridines and benzo[d]imidazo[2,1-b]thiazoles were obtained in good to excellent yields. The present method of halogenation has been also extended to 2-aminopyridines, 2-aminopyrimidine, indole, and isoquinoline with moderate to excellent yields.
2-Phenylimidazo [2,1-b]benzothiazole derivatives
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, (2008/06/13)
A novel 2-phenylimidazo[2,1-b]benzothiazole derivative shown by the following formula STR1 or a salt thereof which possesses an immunoregulatory action and is useful as an antiallergic agent, an antiasthmatic, and a suppressant of rejection at tissue tran