Synthesis of Polysubstituted Imidazo[1,2-<i>a</i>]pyridines via Microwave-Assisted One-Pot Cyclization/Suzuki Coupling/Palladium-Catalyzed Heteroarylation
作者:Jamal Koubachi、Saïd El Kazzouli、Sabine Berteina-Raboin、Abderrahim Mouaddib、Gérald Guillaumet
DOI:10.1021/jo0712603
日期:2007.9.1
A new and efficient method for the synthesis of 2,3,6-trisubstituted imidazo[1,2-a]pyridine derivatives using a microwave-assisted one-pot, two-step Suzuki/heteroarylation or one-pot, three-step cyclization/Suzuki/heteroarylation was developed. Polysubstituted compounds are obtained in good yield from 2-amino-5-halogenopyridines, 2-halogenocarbonyl derivatives, boronic acids, and heteroaryl bromides
一种新的,高效的微波辅助一锅两步铃木/杂芳基化或一锅三步环化合成2,3,6-三取代的咪唑并[1,2- a ]吡啶衍生物的方法开发了/ Suzuki /杂芳基化。从2-氨基-5-卤代吡啶,2-卤代羰基衍生物,硼酸和杂芳基溴化物以高收率获得多取代的化合物。