Merrifield resin and on poly(ethyleneglycol) are reported. The latter is shown to work excellently in asymmetric copper(II)-catalyzed Michael reactions of cyclic β-oxo esters 2 with methyl vinyl ketone (4), yielding the corresponding addition products 5 with quaternary stereocenter in selectivities of 97–99 % ee. The PEG-supported auxiliary 1d can be precipitated from diethyl ether solutions and reused