Palladium-Mediated Three-Component Synthesis of Furo[2,3-<i>b</i>]pyridones by One-Pot Coupling of 3-Iodopyridones, Alkynes, and Organic Halides
作者:Emmanuel Bossharth、Philippe Desbordes、Nuno Monteiro、Geneviève Balme
DOI:10.1021/ol034644y
日期:2003.7.1
[reaction: see text] The one-pot assembly of 4-alkoxy-3-iodo-2-pyridones, terminal alkynes, and organic halides has been achieved by integration of two sequential palladium-mediated cross-coupling reactions--Sonogashira and Wacker-type heteroannulation processes--and subsequent deprotection of the alkoxy group to afford furo[2,3-b]pyridones.
[反应:参见文本]通过整合两个顺序的钯介导的交叉偶联反应(Sonogashira和Wacker),实现了4-烷氧基-3-碘-2-吡啶酮,末端炔烃和有机卤化物的一锅组装-型异环化过程-随后将烷氧基脱保护,得到呋喃[2,3-b]吡啶酮。