A tandem Mannich addition–palladium catalyzed ring-closing route toward 4-substituted-3(2<i>H</i>)-furanones
作者:Jubi John、Eliza Târcoveanu、Peter G Jones、Henning Hopf
DOI:10.3762/bjoc.10.150
日期:——
A facileroute towards highly functionalized 3(2H)-furanones via a sequential Mannich addition-palladium catalyzed ring closing has been elaborated. The reaction of 4-chloroacetoacetate esters with imines derived from aliphatic and aromatic aldehydes under palladium catalysis afforded 4-substituted furanones in good to excellent yields. 4-Hydrazino-3(2H)-furanones could also be synthesizedfrom diazo