Unexpected C–C bond cleavage of epoxide motif: Rhodium(<scp>i</scp>)-catalyzed tandem heterocyclization/[4+1] cycloaddition of 1-(1-alkynyl)oxiranyl ketones
作者:Tao Wang、Cui-Hong Wang、Junliang Zhang
DOI:10.1039/c0cc05650b
日期:——
A rhodium(I)-catalyzed tandem heterocyclization and formal [4+1] cycloaddition of 1-(1-alkynyl)oxiranyl ketones was developed, which provides a general, efficient and practical route to highly substituted furo[3,4-b]furan-3(2H)-ones, wherein the epoxide motif undergo unexpected C-C bond cleavage rather than the classical C-O bond cleavage.
开发了铑(I)催化串联杂环和1-(1-炔基)环氧乙烷基酮的正式[4 + 1]环加成反应,这为高取代的呋喃[3,4-b]提供了通用,有效和实用的途径呋喃-3(2H)-一,其中环氧化物基序发生意想不到的CC键裂解,而不是经典的CO键裂解。