title: Regioselective synthesis of 3-alkynyl-5-bromo-2-pyrones via Pd-catalyzed couplings on 3,5-dibromo-2-pyrone.
abstract: [reaction: see text] 3,5-Dibromo-2-pyrone underwent facile Pd(0)-catalyzed coupling reactions with various alkynes to give rise to the corresponding 3-alkynyl-5-bromo-2-pyrones with good to excellent chemical yields and regioselectivity.
authors.affiliation: Department of Chemistry, Hanyang University, Seoul 133-791, Korea.
authors.forename: Jin-Hee
authors.initials: JH
authors.lastname: Lee
authors.forename: Jung-Sang
authors.initials: JS
authors.lastname: Park
authors.forename: Cheon-Gyu
authors.initials: CG
authors.lastname: Cho