title: Palladium-catalyzed oxidative alkynylation of heterocycles with terminal alkynes under air conditions.
abstract: Pd-Catalyzed oxidative alkynylation of azoles with terminal alkynes was developed via simultaneous activation of both heterocyclic sp(2) C-H and alkynyl sp C-H bonds. The choice of palladium catalyst source and external base resulted in being important factors for performing the reaction with high efficiency and selectivity, and air was successfully utilized as an environmental oxidant in the present alkynylation procedure.
authors.affiliation: Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Republic of Korea.
authors.forename: Seok Hwan
authors.initials: SH
authors.lastname: Kim
authors.forename: Jungho
authors.initials: J
authors.lastname: Yoon
authors.forename: Sukbok
authors.initials: S
authors.lastname: Chang