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. ... Ethyl α-chloro-α-phenylthioacetate reacted with 1-alkenes in CH 2 Cl 2 at -78–0°C in the presence of SnCl 4 to afford the ene reaction products (80–90%), which were readily converted into the corresponding γ-butyrolactones. ... Chem, Lett. (1983), p. 633 and references cited therein.