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. ... Solid phase synthesis of epoxides from alkenoic acids followed by ring-opening reactions with sodium azide or thiophenols and subsequent cleavage from the polymeric support afford γ-and δ-lactones in good yields and high purity. ... Synthesis of epoxides from alkenoic acids ...