An Enantioselective Route to Paeonilactone A via Palladium- and Copper-Catalyzed Reactions
作者:Catrin Jonasson、Magnus Rönn、Jan-E. Bäckvall
DOI:10.1021/jo991787i
日期:2000.4.1
palladium-, copper-, and enzyme-catalyzed reactions starting from 1,3-cyclohexadiene. The key step in the synthesis, a palladium(II)-catalyzed 1,4-oxylactonization of a conjugated diene, simultaneously introduces two of the oxygen substituents required for the target molecule. The synthesis also includes our recently developed copper(I)-catalyzed cross-coupling reaction between dienyltriflates with Grignard