Regioselective synthesis of 2,3-dihydrospiro[1,4]dioxino[2,3-b]pyridine derivatives
作者:Kurissery A. Tony、Santhosh Kumar Chittimalla、G. Abraham Rajkumar、Anjan Chakrabarti
DOI:10.1016/j.tetlet.2010.06.061
日期:2010.8
2-Chloropyridines and an aryl bromide underwent palladium-catalyzed intramolecular C–O bond forming reactions to provide 2,3-dihydrospiro[1,4]dioxino[2,3-b]pyridine derivatives and a benzodioxin, regioselectively.
2-氯吡啶和芳基溴经过钯催化的分子内C-O键形成反应,可选择性地提供2,3-二氢螺[1,4]二恶英[2,3- b ]吡啶衍生物和苯并二恶英。