Catalyzes the synthesis of the phenylpropene eugenol from coniferyl acetate (PubMed:18208524). Phenylpropenes are produced by plants as defense compounds with antimicrobial and antianimal properties, or as floral attractants of pollinators (PubMed:18208524). a carboxylate + eugenol + NADP(+) = a coniferyl ester + NADPH acetate + eugenol + NADP(+) = (E)-coniferyl acetate + NADPH kcat is 0.25 sec(-1) with coniferyl acetate as substrate. Aromatic compound metabolism; phenylpropanoid biosynthesis. Mostly expressed in petals, and, to a lower extent, in sepals, stamens and pistils. Belongs to the NmrA-type oxidoreductase family.