Bischoff, Chemische Berichte, 1890, vol. 23, p. 1914
作者:Bischoff
DOI:——
日期:——
Martynoff, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1948, vol. 227, p. 1371
作者:Martynoff
DOI:——
日期:——
Convenient and rapid diazotization and diazo coupling reaction via aryl diazonium nanomagnetic sulfate under solvent-free conditions at room temperature
acid is used for conversion of several types of aromatic amine, containing electron-withdrawing groups as well as electron-donating groups to the corresponding azo dyes in excellent yield. The synthesis of these compounds is described by the sequential diazotization–diazo coupling of various aromatic amines with sodium nitrite, nanomagnetic supported sulfonic acid and coupling agents under solvent-free