Spiro-oxindoles via bimetallic [Pd(0)/Ag(I)] catalytic intramolecular Heck-1,3-dipolar cycloaddition cascade reactions
作者:Ronald Grigg、Emma L Millington、Mark Thornton-Pett
DOI:10.1016/s0040-4039(02)00331-3
日期:2002.4
The combination of an intramolecular Heck reaction with a subsequent Ag(l) catalysed imine --> azomethine ylide --> cycloaddition cascade is described for the formation of novel spiro-oxindoles. The reaction proceeds regiospecifically with good to excellent stereoselectivity and creates two new rings, three bonds and three stereocentres. (C) 2002 Elsevier Science Ltd. All rights reserved.