This article describes the synthesis of and catalysis with a polymeric catalyst (Zn/1(NHCOO)) carrying salen-zinc complex structure in the main chain prepared from polyaddition of zinc/bis(4-hydroxy)salicylidene-1,2-diiminoethane and 4,4'-diphenylmethane diisocyanate. Poly(Zn/1(NHCOO)) promoted the reaction of glycidyl phenyl ether (2) with 1-propoxyethyl-2-ethylhexanoate (3) only at moderately elevated temperatures. Poly(Zn/1(NHCOO)) can be recycled by simple filtration from the reaction mixtures, and the recycled polymer is as active as the freshly prepared one. (C) 2008 Wiley Periodicals, Inc.