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. ... Uv irradiation of γ-allyloxy-carbonyl compounds (1), (2) and (8) gives tetrahydropyran-3-ols in 45–61% isolated yields. ... Typical conditions: a solution of (1)(0.7g) in benzene (70ml) in the presence of sodium carbonate (50mg) was irradiated for 2 h. under nitrogen, using quartz ...