selective alkylation

例句：

1. 1. The selective alkylation method is used to produce a variety of chemicals with different properties.
   选择性烷基化方法用于生产具有不同性质的多种化学品。
2. 2. In the process of selective alkylation, the reactants are carefully chosen to maximize the desired product yield.
   在选择性烷基化过程中，仔细选择反应物以最大化期望产物的产率。
3. 3. The selective alkylation reaction has been widely applied in the production of pharmaceuticals and finechemicals.
   选择性烷基化反应在制药和精细化学品的生产中得到了广泛应用。