108919-88-6Relevant articles and documents
4-Bromo-2-sulfolenes. Butadienyl Cation Equivalents
Chou, Ta-shue,Hung, Su Chun,Tso, Hsi-Hwa
, p. 3394 - 3399 (2007/10/02)
4-Bromo-2-sulfolene and 4-bromo-3-methyl-2-sulfolene react with alkylcuprates to give direct substitution products, with vinyl- or phenylcuprates or sulfur-containing nucleophiles to give allylic substitution products, and with strongly basic nucleophiles to give elimination products.The allylic substitution products and the isomerized direct substitution products are precursors for substituted 1,3-butadienes.Thus, these 4-bromo-2-sulfolenes serve as butadienyl cation equivalents.