有机化合物的合成,实际上是一些官能团的变换和衍生。在这种变化中同样存在着“不破不立”的规律。如果我们在解答有机合成题时能遵循“不破不立”、“先破后立”的哲学思维方法,将会使问题迎刃而解。下面举例说明之。例1.试写出以乙醇、食盐、浓硫酸、水为原料制取乙二醇的化学方程式。 The synthesis of organic compounds is actually the conversion and derivatization of some functional groups. In this kind of change, there is also a rule of “not breaking without standing”. If we can follow the philosophical way of thinking of “do not break without stand” or “break before stand” when answering organic synthesis questions, the problem will be solved. Here’s an example. Example 1. Write down the chemical equation for producing ethylene glycol using ethanol, salt, concentrated sulfuric acid, and water as raw materials.