Synthesis of triazenes by using aryl diazonium silica sulfates under mild conditions
作者:Amin Zarei、Leila Khazdooz、Hamidreza Aghaei、Ghobad Azizi、Alireza Najafi Chermahini、Abdol R. Hajipour
DOI:10.1016/j.dyepig.2013.10.022
日期:2014.2
reactions were carried out in water at room temperature under mild and heterogeneous conditions. Moreover, temperature dependent NMR spectra were studied for 1-(2-nitrophenyl)-3,3-diethyltriazene to determine the rotational barrier energy around N(2)–N(3) bond of this molecule. Simple and clean work-up, short reaction times and good yields were the advantages of this method.
在本文中描述了一种通过使用芳基重氮氧化硅硫酸盐和仲胺来合成芳基三氮烯的有效,快速和简单的方法。使用本发明的方法,含有吸电子基团和给电子基团的不同种类的芳基重氮氧化硅硫酸盐可以快速地转化为相应的芳基三氮烯,产率高且反应时间短。这些反应是在室温,温和和非均质条件下于水中进行的。此外,对1-(2-硝基苯基)-3,3-二乙基三氮烯进行了温度依赖性NMR光谱研究,以确定该分子N(2)–N(3)键周围的旋转势垒能。该方法的优点是后处理简单,清洁,反应时间短,产率高。