A new nitrite ionic liquid (IL-ONO) as a nitrosonium source for the efficient diazotization of aniline derivatives and in-situ synthesis of azo dyes
作者:Hassan Valizadeh、Ashkan Shomali
DOI:10.1016/j.dyepig.2010.11.010
日期:2012.3
affect the efficient diazotization of arylamines. The diazonium salts thus obtained were coupled, using standard experimental procedures, to a range of tertiary anilines, phenols and naphthols to afford the requisite azo dyes in good yield. The diazotization and subsequent azo-coupling generated the related azo dyes at 0–5 °C in short reaction times with a simple experimental procedure.
合成了一种新的含特定任务的亚硝酸盐离子液体,该液体由N-甲基-N-羟丁基咪唑啉鎓氯化物的O-亚硝化反应衍生而来,并用作亚硝鎓离子的来源,以影响芳基胺的有效重氮化。使用标准的实验方法,将如此获得的重氮盐与一系列叔苯胺,苯酚和萘酚偶联,以高收率提供所需的偶氮染料。通过简单的实验程序,重氮化和随后的偶氮偶联在较短的反应时间内于0-5°C生成了相关的偶氮染料。