Journal of Organic Chemistry p. 14151 - 14160 (2019)
Update date:2022-09-26
Topics:
Semwal, Rashmi
Ravi, Chitrakar
Saxena, Soumya
Adimurthy, Subbarayappa
Copper-catalyzed synthesis of disulfenylated imidazo[1,2-a]pyridines and indoles using elemental sulfur and haloarenes through one-pot, three component reaction by two C-S-C bond formations has been developed. The method has a broad substrate scope with a variety of substituted haloarenes. The conditions were also applied for the synthesis of benzothieno-imidazo[1,2-a]pyridines in excellent yields (99%) through intramolecular sulfenocyclization of 2-(2-halophenyl)imidazo[1,2-a]pyridines using sulfur powder.
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