求翻译：具体主要是介绍这些化学物质的系统命名，化学反应，反应机理，制备方法。其中化学反应基本上为基团的取代，能否进行一个反应，取决于热力学和动力学两个方面的因素。而制备方法主要是通过无机物，石油提取物，以及容易制备或成本低的物质制得难以得到的物质。反应机理也为基团之间的进攻和离去倾向之间的竞争。是什么意思？

Concrete is to introduce a system named these chemicals, chemical reactions, reaction mechanisms, preparation methods. Chemical reaction which is basically the replacement for the group, can be a reaction, depending on both thermodynamic and kinetic factors. The preparation method is mainly through

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Specific naming system is mainly to introduce these chemicals, chemical reactions, reaction mechanism, method of preparation. Which basically replaced by groups of chemical reactions, can a response depending on thermodynamic and kinetic aspects of factors. Preparation methods of mainly by inorganic

Mainly concrete is to recommend the systems of these chemical materials to name, chemical reaction, the reaction mechanism, prepare the method. Among them the chemical reaction is basically the replacement of the base group, whether could take a response, the factors of two respects of depending on