Journal of the Iranian Chemical Society p. 1045 - 1054 (2016)
Update date:2022-07-30
Topics: Nano-CuFe2O4 Sulfonic Acid Catalyst Diazotization of Aromatic Amines Efficient Synthesis of Azo Dyes Recyclability Nanomagnetic Properties
Nemati, Firouzeh
Elhampour, Ali
Natanzi, Mahshid B.
Sabaqian, Samaneh
Abstract: A novel heterogeneous sulfonic acid functionalized nanomagnetic CuFe2O4 was successfully prepared and characterized by analyzing different obtained data including Fourier transform infrared spectroscopy, X-ray powder diffraction, field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, thermogravimetric analysis, dynamic light scattering and vibrating sample 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 acid showed high activity in synthesis of variety of aryl diazonium salts. In addition the as-prepared aryl diazonium ferrite sulfate salts are stable at room temperature for many hours and reacted efficiently in coupling reactions of aryl diazonium salts. All the azo dyes are synthesized in high yields and simple reaction conditions at room temperature. Moreover, the nanomagnetic solid acid was easily recovered from the reaction mixture and reused five runs without significant loss of activity. Graphical Abstract: [Figure not available: see fulltext.]
View MoreJewim Pharmaceutical (Shandong) Co., Ltd
Contact:+8615621883869
Address:山东省泰安市高新技术产业开发区配天门大街西首
BAODING SINO-CHEM INDUSTRY CO.,LTD
Contact:0312-5956088
Address:NO.8 FUXING ROAD,CHINA
Contact:+86-571-87010026
Address:202, Zhenhua Road,
Refine Chemicals Science & Technology Technology Developing Co., Ltd.
Contact:+86-22-87899130
Address:No.12,west keyan road,Tianjin City
Contact:+86-531-58668191 58668193 58668196 58661173
Address:No 55,Beixiaoxinzhuang West Street,Jinan City, Shandong Province
Doi:10.1080/10426507.2012.690117
(2012)Doi:10.1139/v78-221
(1978)Doi:10.1016/S0040-4020(01)88186-2
(1992)Doi:10.1002/ejic.201200100
(2012)Doi:10.1002/chem.201202070
(2012)Doi:10.1039/c2ob26649k
(2012)