69085-43-4Relevant articles and documents
Synthesis of Substituted 4-Arylamino-1,2-naphthoquinones in One-Pot Reactions Using CotA-Laccase as Biocatalyst
Sousa, Ana Catarina,Santos, Iolanda,Piedade,Martins, Lígia O.,Robalo, M. Paula
, p. 3380 - 3387 (2020/05/18)
An efficient and environmentally benign biocatalytic strategy for the synthesis of substituted 4-arylamino-1,2-naphthoquinones was developed, through a cross-coupling reaction in which the 1,2-naphthoquinone nucleus, formed in the biocatalytic process mediated by CotA-laccase from Bacillus subtilis, is the key synthetic intermediate. Electrochemical data and kinetic parameters were determined revealing a significant higher specificity of CotA-laccase for 4-amino-3-hydroxynaphthalene-1-sulfonic acid (AHNSA). This ability of CotA-laccase to discriminate between oxidisable aromatic amines allows the set-up of one-pot reactions in the presence of the enzyme, between AHNSA and a set of appropriate aromatic amines under mild reaction conditions. (Figure presented.).
The Effect of Metal Chelate Complexation on the Reactivity and Absorption Spectra of 1,2-Naphthoquinones: the Synthesis of New Types of Near I.r. Absorbing Dyes
Yoshida, Katsuhira,Koujiri, Tetsunao,Oga, Norio,Ishiguro, Miwa,Kubo, Yuji
, p. 708 - 710 (2007/10/02)
The reactions of sodium 1,2-naphthoquinone-4-sulphonate with various arylamines and 1,1-bisethylene were efficiently promoted by nickel(II) ions to give 4-aminated, 4-arylated, and 4-vinylated 1,2-naphtoquinones with absorption ba
