N，N－二甲基苯胺的亚硝化反应探讨

Research of N,N-dimethyl Aniline in Nitrite Treatment

Ｎ，Ｎ－二甲基苯胺的亚硝化反应在一定酸度（ｐＨ≤４．７０）条件下发生。产物有三种情况：（１）ｐＨ４．７０～４．２２时，产物为对亚硝基Ｎ，Ｎ－二甲基苯胺绿色结晶（ｍ．ｐ８６℃）；（２）ｐＨ≤１．７０时产物为醌肟结构的桔黄色盐；（３）ｐＨ３．５７～２．０８时，产物为以上两种产物的混合物黄绿色结晶体。

When the reaction of N, N-dimethyl aniline with the requirments of nitrite at different acidity, there are three products.(1) If pH4.70￣4.22, the product is P-Nitroso-N,N-dimethyl aniline, a green crystallized substance (m. p 86℃ ).(2) If pH≤1 .70, the product is an orange salt of quinone oxime. (3) If pH3.57￣2.08, the product is a mixture of a yellow and green crystal.