Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... The acid-catalyzed cyclodehydration of (Z)- and (E)-γ-hydroxy-α,β-unsaturated ketones to furans is described. In the case of E olefins, photochemical trans- to cis- olefin isomerization was found to accelerate the reaction. ... The acid-catalyzed cyclodehydration of (Z)- and ...