title: 9,10-Dicyanoanthracene Catalyzed Decarboxylative Alkynylation of Carboxylic Acids under Visible-Light Irradiation.
abstract: A metal-free, visible-light-induced photocatalytic procedure for decarboxylative alkynylation of carboxylic acids was reported. With 9,10-dicyanoanthracene as the photoredox catalyst, the reaction covered a broad scope of α-amino acids, α-oxo acids, and α-keto acids with blue LED irradiation at room temperature under an atmosphere of argon, delivering alkynyl products in moderate to excellent yields. Natural sun light also promoted this alkynylation strategy. This work represents the first example of an organophotocatalytic method for decarboxylative alkynylation of carboxylic acids.
authors.affiliation: Department of Chemistry and Biology, College of Science, National University of Defense Technology , Changsha 410073, China.
authors.forename: Chen
authors.initials: C
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin 300071, China.
authors.forename: Jin-Dong
authors.initials: JD
authors.lastname: Yang
authors.affiliation: Department of Chemistry and Biology, College of Science, National University of Defense Technology , Changsha 410073, China.
authors.forename: Yi-He
authors.initials: YH
authors.lastname: Li
authors.affiliation: State Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin 300071, China.
authors.forename: Xin
authors.identifier: 0000-0001-6020-9170
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Chemistry and Biology, College of Science, National University of Defense Technology , Changsha 410073, China.|State Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin 300071, China.
authors.forename: Jin-Pei
authors.initials: JP
authors.lastname: Cheng