Copper-Catalyzed C–H Functionalization of Pyridines and Isoquinolines with Vinyl Azides: Synthesis of Imidazo Heterocycles
作者:Ramachandra Reddy Donthiri、Venkatanarayana Pappula、N. Naresh Kumar Reddy、Dipayan Bairagi、Subbarayappa Adimurthy
DOI:10.1021/jo5021618
日期:2014.11.21
Copper(I) iodide-catalyzed oxidative C(sp2)–H functionalization of pyridines and isoquinolines for the synthesis of imidazo[1,2-a]pyridines and 2-phenylimidazo[2,1-a]isoquinolines with vinyl azides under mild aerobic conditions is reported. Good selectivity for 3-substituted pyridines and single isomer formation with isoquinolines were observed.
碘化铜(I)催化吡啶和异喹啉的碘化铜(I 2)催化氧化C(sp 2)–H官能团,用于在温和的条件下用乙烯基叠氮化物合成咪唑并[1,2- a ]吡啶和2-苯基咪唑并[ 2,1- a ]异喹啉有氧条件的报道。观察到对3-取代的吡啶具有良好的选择性,并与异喹啉形成了单一异构体。