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芳胺的逆法重氮化

名词解释题
2021-12-30 06:40
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正确答案
指弱碱性芳胺重氮化时,等相对分子质量的芳胺和亚硝酸钠混合后,加入到盐酸(或硫酸)和冰的混合物中,进行重氮化的重氮化方法。

试题解析

标签: 染料 化学工程
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芳胺的酰化在有机合成中有着重要的作用,主要体现在((____))以及((____))两个方面。 [ 2 分
顺法重氮化是指重氮化时,先将芳胺溶于稀酸中,然后再冷却的条件下,加入亚硝酸钠溶液。
反式重氮化是指将等相对分子质量的芳胺和亚硝酸钠混合后,加入到盐酸(或硫酸)和冰的混合物中,进行重氮化。
分光光度法测定水中亚硝酸盐氮,通常是基于重氮偶联反应,生成橙色染料。
染料根据其来源可分为()和合成染料两种。染料可以按化学结构分类,如偶氮染料、蒽醌染料、三芳甲烷染料、靛类染料、硫化染料等。
芳胺的顺法重氮化
芳胺的逆法重氮化
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重氮化是芳香族伯胺与亚硝酸作用生成重氮化合物的化学过程。
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翻译:With Average or With Particular Average(WA or WPA)()
在重氮化反应中,酸量必须适当过量。酸过量的多少取决于芳伯胺的碱性。碱性越弱,过量越多。
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