Nano-CuFe2O4-supported sulfonic acid as a novel and recyclable nanomagnetic acid for diazotization of aromatic amines: efficient synthesis of various azo dyes
作者:Firouzeh Nemati、Ali Elhampour、Mahshid B. Natanzi、Samaneh Sabaqian
DOI:10.1007/s13738-016-0818-x
日期:2016.6
magnetometer. Then the novel acidic reagent was examined in synthesis of various azo-containing compounds from coupling of aryl diazonium ferrite sulfate salts with aromatic and non-aromatic compounds. The procedure starts by diazotization of aromatic amines with NaNO2 and wet CuFe2O4–SO3H and then coupling reaction of aryl diazonium ferrite sulfate salts with appropriate reagent. The prepared nano-solid
摘要一种新颖的多相磺酸官能化的纳米磁性的CuFe 2 ö 4成功地制备和表征通过分析不同的获得的数据,包括傅立叶变换红外光谱,X-射线粉末衍射,场发射扫描电子显微镜,能量色散型X射线光谱法,热重分析,动态光散射和振动样品磁力计。然后,通过将芳族重氮硫酸铁盐与芳族和非芳族化合物偶联,在合成各种含偶氮化合物的过程中检查了该新型酸性试剂。该过程开始于将芳族胺与NaNO 2和湿式CuFe 2 O 4 –SO 3重氮化。H,然后使芳基重氮硫酸铁盐与适当的试剂偶联反应。所制备的纳米固体酸在各种芳基重氮盐的合成中显示出高活性。另外,所制备的芳基重氮硫酸铁盐在室温下稳定许多小时,并且在芳基重氮盐的偶联反应中有效地反应。所有偶氮染料都可以在室温下以高收率和简单的反应条件合成。此外,容易从反应混合物中回收纳米磁性固体酸,并重复使用五次,而活性没有明显损失。 图形概要