期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 355, 期 13, 页码 2686-2692出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.201300333
关键词
C(sp(3))H functionalization; copper; dehydrogenative coupling; imidazo[1, 2-a]pyridines; oxygen
资金
- Natural Science Foundation of China [21042007, 21172162]
- Young National Natural Science Foundation of China [21202111]
- Young Natural Science Foundation of Jiangsu Province [BK2012174]
- PAPD
- Soochow University
Compared with the well-known palladium-catalyzed oxidative dehydrogenation coupling reactions, similar transforms initiated by copper/oxygen have attracted more and more attention. We have investigated a novel construction of heteroaromatic imidazo[1,2-a]pyridines through copper(I) iodide/boron trifluoride etherate/oxygen-mediated dehydrogenative reactions of aryl alkyl or alkyl alkyl ketones with 2-aminopyridines. Four hydrogen atoms are removed and two new CN bonds are formed in one step via the imine formation and oxidative C(sp(3))H functionalization.
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