n.二氯
Using Chapman rearrangement to prepare 2, 6?dichloro?diphenylamine? 应用Chapman重排制备2,6-二氯二苯胺
How many dichloro derivatives of anthracene are possible Give their names. 答:蒽有多少种二氯衍生物写出他们的名字.
Polychlorobiphenyls in dye intermediate 2,6 _ dichloro _ 4 _ nitroaniline were analyzed by GC-MS in SIM method. 用气相色谱-质谱联用仪,采用选择离子的方法对染料中间体2,6_二氯_4_硝基苯胺中的多氯联苯进行分析。
Six series of aryloxy pyridazines derivatives have been synthesized starting from 3,6 dichloro pyradizine. 以3,6-二氯哒嗪为原料,合成了6类芳氧基哒嗪类衍生物,研究了它们的合成方法,并测定了所得产物的除草活性。
The yield of dichloro compound is over 78%.The total yield of 2, 6-dichlorotoluene is over 60% and the purity of product is more than 99.0%. 该工艺氯化采用复合催化剂，无需用任何溶剂，二氯化物收率大于78%25,2,6-二氯甲苯总收率可达60%25，纯度大于99%25。
n.[化]二氯甲烷
