Five derivative dyes from the parent dyes were obtained by similar nucleophilic substitution reaction in which five primary amines were employed as the nucleophilic reagent.
将母体染料的中位氯原子用氨基试剂亲核取代，衍生合成了五个中位仲胺七甲川菁染料。
This paper is to discuss the higher-order derivative of many-variables abstract composite function, and to put forward the easy method to this type of questions through substitution.
对多元抽象复合函数的高阶求导进行了讨论，利用代换的思想，得到了对其进行高阶求导的简便易行的方法。
Carbon, nitrogen, and chalcogen substitution effects on 2, 1, 3-benzothiadiazole derivative: theoretical investigations of electronic, optical, and charge transport properties.
碳、氮和氧族元素取代对2,1,3 -苯并噻二唑衍生物的电子、光谱、电荷传输性质影响的理论研究。
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