Synthesis of heterocycles via sequential Pd/Ru-catalysed allene insertion–nucleophile incorporation–olefin metathesis
作者:H.Ali Dondas、Genevieve Balme、Blandine Clique、Ronald Grigg、Anne Hodgeson、James Morris、Visuvanathar Sridharan
DOI:10.1016/s0040-4039(01)01810-x
日期:2001.12
A novel sequential palladium/ruthenium-catalysed three-component process is described involving allenylation of aryl/heteroaryl iodides to generate (pi -allyl) palladium species which are intercepted by nitrogen nucleophiles to afford 1,6- and 1,7-dienes. Subsequent ring-closing metathesis affords N-heterocycles in good yield. (C) 2001 Elsevier Science Ltd. All rights reserved.