Synthesis of carbo- and heterocycles via palladium catalysed cascade allene insertion–nucleophile incorporation–Michael addition processes
作者:Ronald Grigg、Martyn Inman、Colin Kilner、Ines Köppen、John Marchbank、Peter Selby、Visuvanathar Sridharan
DOI:10.1016/j.tet.2007.03.044
日期:2007.7
Novel palladium catalysed two- and three-component thermal (conventional heating and microwave) cascade processes are described involving allenylation of an aryl iodide to generate a (π-allyl)palladium species, which are intercepted (inter- or intramolecularly) by a carbon or nitrogen nucleophile followed by intramolecular Michael addition to afford carbo- and heterocycles in good yields.
描述了新颖的钯催化的二元和三元热(常规加热和微波)级联过程,涉及芳基碘化物的烯丙基化以生成(π-烯丙基)钯物质,其被碳或碳原子截获(分子间或分子内)。氮亲核试剂,然后分子内迈克尔加成,以高收率提供碳环和杂环。