title: C-H functionalization of 1,4-naphthoquinone by oxidative coupling with anilines in the presence of a catalytic quantity of copper(II) acetate.
abstract: The oxidative addition of anilines (2) with 1,4-naphthoquinone (3) to give N-aryl-2-amino-1,4-naphthoquinones (1) was found to be catalyzed by copper(II) acetate. In the absence of the catalyst, the reactions are slower and give lower yields with the formation of many colateral products. In the presence of 10 mol % hydrated copper(II) acetate, the reactions are generally more efficient in that they are cleaner, higher yielding, and faster.
authors: Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária CT bloco A, Ilha do Fundão, RJ 21941-909, Brazil.
authors: Cinthia da S
authors: Cda S
authors: Lisboa
authors: Vanessa G
authors: VG
authors: Santos
authors: Boniek G
authors: BG
authors: Vaz
authors: Nanci C
authors: NC
authors: de Lucas
authors: Marcos N
authors: MN
authors: Eberlin
authors: Simon J
authors: SJ
authors: Garden