Cationic iron salts were found to be good catalysts for intra- and intermolecular addition of carboxylicacids to olefins, which afforded the corresponding esters in good yields.
Unusual iodine catalyzed lactonization of γ-methyl-γ,δ-pentenoic acids: A facile synthesis of γ,γ-dimethyl-γ-butyrolactones
作者:Kyoung Mahn Kim、Eung K. Ryu
DOI:10.1016/0040-4039(96)00026-3
日期:1996.2
γ,γ-Dimethyl-γ-butyrolactones were exclusively obtained from γ-methyl-γ,δ-pentenoicacids with a catalytic amount of iodine in good yields in methylene chloride.