title: Iridium-catalyzed annulation of N-arylcarbamoyl chlorides with internal alkynes.
abstract: An iridium complex successfully catalyzed the annulation of various N-arylcarbamoyl chlorides with internal alkynes to afford 2-quinolones in good to excellent yields. The present reaction is widely applicable to substrates with various functionalities. An amide-iridacycle complex was isolated, and it is likely that such an iridacycle species is a key intermediate in the catalytic reaction.
authors.affiliation: Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan.
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Iwai
authors.forename: Tetsuaki
authors.initials: T
authors.lastname: Fujihara
authors.forename: Jun
authors.initials: J
authors.lastname: Terao
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Tsuji
mesh_terms: D000480:Alkynes / Q000737:chemistry*; D002384:Catalysis; D002712:Chlorides / Q000737:chemistry*; D007495:Iridium / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D000480:Alkynes; D002712:Chlorides; D007495:Iridium