{Reference Type}: Journal Article {Title}: Chiral bifunctional sulfide-catalyzed enantioselective bromolactonizations of α- and β-substituted 5-hexenoic acids. {Author}: Sumida S;Okuno K;Mori T;Furuya Y;Shirakawa S; {Journal}: Beilstein J Org Chem {Volume}: 20 {Issue}: 0 {Year}: 2024 {Factor}: 2.544 {DOI}: 10.3762/bjoc.20.158 {Abstract}: Enantioselective halolactonizations of sterically less hindered alkenoic acid substrates without substituents on the carbon-carbon double bond have remained a formidable challenge. To address this limitation, we report herein the asymmetric bromolactonization of 5-hexenoic acid derivatives catalyzed by a BINOL-derived chiral bifunctional sulfide.