Facile Synthesis of 2‐Amino‐1,4‐naphthoquinones catalyzed by Molecular Iodine under Ultrasonic Irradiation
作者:Bing Liu、Shun‐Jun Ji
DOI:10.1080/00397910701866254
日期:2008.3.28
Abstract The conjugate addition reactions of amines with 1,4‐naphthoquinone were catalyzed efficiently by moleculariodine under ultrasonic irradiation to afford 2‐amino‐1,4‐naphthoquinones in moderate to excellent yields.
Transition metal mediated selective C vs N arylation of 2-aminonaphthoquinone and its application toward the synthesis of benzocarbazoledione
作者:Polu Ashok、Andivelu Ilangovan
DOI:10.1016/j.tetlet.2017.10.075
日期:2018.1
Selective C vs N-arylation of 2-aminonaphthoquinone was achieved using different transition metal salts and arylboronic acids. Mn(OAc)(3)center dot 2H(2)O provided C-arylated product whereas NiCl2 center dot 6H(2)O and Cu (OAc)(2)center dot H2O provided N-mono arylated and N,N-diarylated products respectively. Usefulness of the C and N arylated product was demonstrated by converting it into benzocarbazoledione. (C) 2017 Elsevier Ltd. All rights reserved.
Kobayashi Kazuhiro, Suzuki Masayoshi, Takeuchi Hiroyasu, Konishi Atsushi,+, J. Chem. Soc. Perkin Trans. 1, (1994) N 8, S 1099- 1104