Synthesis of (±) Wine Lactone and Its Analogues by a Diels-Alder Approach
作者:Patrick D. O'Connor、U Bin Kim、Margaret A. Brimble
DOI:10.1002/ejoc.200900486
日期:2009.9
route to (±)-wine lactone (1) by a cis-selective kinetically controlled intramolecular Diels–Alder (IMDA) cycloaddition of the linear triene 2 is reported. The triene precursor was synthesised by TBAF-catalysed coupling of an acyl fluoride with an silyl enol ether. Four butadienyl but-3-enoates were prepared and cyclised under mild conditions to give a series of winelactoneanalogues. The diastereoselectivity