title: Palladium-catalyzed oxidative annulation of acrylic acid and amide with alkynes: a practical route to synthesize α-pyrones and pyridones.
abstract: A range of internal alkynes smoothly underwent palladium-catalyzed oxidative annulations with acrylic acid and amide to afford α-pyrones and pyridones in good to excellent yields with high regioselectivity. The usage of O2 (1 atm) as a stoichiometric oxidant with H2O as the only byproduct under mild conditions makes this process more attractive and practical.
authors.affiliation: School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China.
authors.forename: Yue
authors.initials: Y
authors.lastname: Yu
authors.forename: Liangbin
authors.initials: L
authors.lastname: Huang
authors.forename: Wanqing
authors.initials: W
authors.lastname: Wu
authors.forename: Huanfeng
authors.initials: H
authors.lastname: Jiang