title: Metal-free C(3)-H arylation of coumarins promoted by catalytic amounts of 5,10,15,20-tetrakis(4-diethylaminophenyl)porphyrin.
abstract: The metal-free C-H arylation of coumarins was achieved in the presence of catalytic amounts of 5,10,15,20-tetrakis(4-diethylaminophenyl)porphyrin. This mild and environmentally friendly Meerwein arylation provided facile access to a broad variety of 3-arylcoumarins in synthetically useful yields.
authors.affiliation: Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kojima
authors.forename: Kounosuke
authors.initials: K
authors.lastname: Oisaki
authors.forename: Motomu
authors.initials: M
authors.lastname: Kanai
mesh_terms: D002244:Carbon / Q000737:chemistry*; D002384:Catalysis; D003374:Coumarins / Q000737:chemistry*; D006846:Hydrocarbons, Halogenated / Q000737:chemistry*; D006859:Hydrogen / Q000737:chemistry*; D008670:Metals; D015394:Molecular Structure; D011166:Porphyrins / Q000737:chemistry*
chemical_list: D003374:Coumarins; D006846:Hydrocarbons, Halogenated; D008670:Metals; D011166:Porphyrins; D002244:Carbon; D006859:Hydrogen