Synthesis of Substituted 4‐Arylamino‐1,2‐naphthoquinones in One‐Pot Reactions Using CotA‐Laccase as Biocatalyst
作者:Ana Catarina Sousa、Iolanda Santos、M. F. M. M. Piedade、Lígia O. Martins、M. Paula Robalo
DOI:10.1002/adsc.202000082
日期:2020.8.19
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 biocatalyticprocess mediated by CotA‐laccase from Bacillus subtilis, is the key synthetic intermediate. Electrochemical data and kinetic parameters were determined revealing
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
nyl]ethylene were efficiently promoted by nickel(II) ions to give 4-aminated, 4-arylated, and 4-vinylated 1,2-naphthoquinones with absorptionbands at larger wavelengths and with increased intensities on metal complex formation, with absorption maxima in the neari.r. region.