Sustainable Synthesis of Balsalazide and Sulfasalazine Based on Diazotization with Low Concentrations of Nitrogen Dioxide in Air
作者:Dagmar Hofmann、Eva Gans、Jasmin Krüll、Markus R. Heinrich
DOI:10.1002/chem.201605359
日期:2017.3.23
Low concentrations of nitrogen dioxide, which arises as a side product from a range of industrial processes, can effectively be recycled through the diazotization of anilines. The studies reported herein now demonstrate that the removal of nitrogen dioxide from gas streams is even more effective when hydrophilic anilines are used as starting materials. The diazonium salts, which are obtained in this
低浓度的二氧化氮是一系列工业过程中的副产品,可以通过苯胺的重氮化反应有效地回收利用。现在报道的研究表明,当使用亲水性苯胺作为起始原料时,从气流中除去二氧化氮甚至更有效。以这种方式以定量产率获得的重氮盐可以直接用于偶氮偶合反应,从而为工业上重要的偶氮化合物开辟了一条诱人的途径。