A convenient method for lactonization of α-allyl esters using iodine in dimethyl- sulphoxide
A simple method for the synthesis of α-γ-disubstituted-γ-butyrolactones by cyclization of α-allyl esters using iodine in dimethylsulphoxide is reported. This method is efficient and operationally simple in comparison to methods using transition metal complexes.
KEY WORDS: γ-Butyrolactones, α-Allyl esters, Iodine, Dimethyl sulphoxide
Bull. Chem. Soc. Ethiop. 2014, 28(3), 469-473.