Palladium-Catalyzed Dehydrogenation Coupling–Cyclization Reactions of Acetylenic Acids with Iodonium Ylides for the Synthesis of 2(5H)-Furanones
作者:Shao-Feng Pi、Wen-Guang Li、Bo Cai、Hong-Bo Xiao、Han-Zhou Sun
DOI:10.1055/s-0035-1560554
日期:——
A new route for the synthesis of 2(5H)-furanones is presented via Pd(PPh3)4-catalyzed cascade reaction of acetlenic acids with iodonium ylides using K2CO3 as the base. The cascade proceeds through dehydrogenation coupling and cyclization under mild conditions.
以 K2CO3 为碱,通过 Pd(PPh3)4 催化乙酸与碘鎓叶立德的级联反应,提出了合成 2(5H)-呋喃酮的新途径。级联在温和条件下通过脱氢偶联和环化进行。