28795-36-0Relevant articles and documents
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Saldabol et al.
, (1971)
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A multi pathway coupled domino strategy: I2/ TBHP-promoted synthesis of imidazopyridines and thiazoles via sp3, sp2 and sp C-H functionalization
Feng, Lei,Li, Shichen,Ma, Chen,Wang, Xinfeng,Wang, Yishou,Yao, Yiming
, p. 5919 - 5927 (2022/03/31)
I2/TBHP-promoted, one-pot, multi pathway synthesis of imidazopyridines and thiazoles has been achieved through readily available ethylarenes, ethylenearenes and ethynearenes. I2/TBHP as an initiator and oxidant is used to realize the C-H functionalization of this domino reaction. Simple and available starting materials, wide range of functional group tolerance, high potential for drug activity of the products and application in production are the advantageous features of this method.
Molecular iodine enabled generation of iminyl radicals from oximes: A facile route to imidazo[1,2-a]pyridines and its regioselective C-3 sulfenylated products from simple pyridines
Singh, Deepak,Chowdhury, Soumyadeep Roy,Pramanik, Shyamal,Maity, Soumitra
, (2021/04/22)
An iodine promoted simple and environment friendly protocol has been developed to access imidazo[1,2-a]pyridines from unfunctionalized pyridines and oxime esters. This straightforward method efficiently converts the substrates into corresponding products affording moderate to good yields with large functional group tolerance. Additionally extensive investigation revealed that regioselective domino C-3 methyl sulfenylated imidazo[1,2-a]pyridines were also accessible first time from pyridines and oxime esters in DMSO solvent. The reaction operates through metal-free generation of iminyl radicals from easily accessible oxime esters, to build up the second heterocyclic ring on pyridines.
Iodine mediated oxidative cross coupling of 2-aminopyridine and aromatic terminal alkyne: A practical route to imidazo[1,2-: A] pyridine derivatives
Samanta, Surya Kanta,Bera, Mrinal K.
, p. 6441 - 6449 (2019/07/10)
A novel, transition-metal free route leading to imidazo[1,2-a]pyridine derivatives via iodine mediated oxidative coupling between 2-aminopyridine and aromatic terminal alkyne has been demonstrated. This newly developed method discloses an operationally simple way for the construction of imidazoheterocycles. Commercially available antiulcer drug zolimidine may readily be synthesized employing this method.