The Nucleophilic Substitution Reaction of Ethyl Acetate ($S_N2 $)
At some point, in the seminary, all the apprentices sat around, and the gentleman wanted to teach the wonderful theory of the nucleophilic substitution reaction of ethyl acetate ($S_N2 $).

Mr. took the utensil, put ethyl acetate in it, and re-introduced the nucleophilic reagent. The apprentices said: "Look at it, this ethyl acetate will react $S_N2 $when it meets the nucleophilic reagent." After saying that, his eyes were bright, and he looked at the apprentices.

The apprentices all stared at it. See the nucleophilic reagent such as the warrior's sudden advance, straight to ethyl acetate. Some of the atoms of ethyl acetate seem to be disturbed by external forces, and the structure is gradually changed. The mechanism here is like a game of chess, one move and the whole The power of the nucleophilic reagent makes a bond in ethyl acetate gradually loose, and a new bond is gradually formed.

After a while, the reaction is completed, and the product is in front of everyone's eyes. Sir analyzed the change in detail: "This $S_N2 $reaction is formed in one step. The moment the nucleophilic reagent attacks, the old bond breaks and the new bond is formed at the same time. Its rate is related to the concentration of ethyl acetate and the nucleophilic reagent, which is its essence." Hearing this, the apprentice nodded, or frowned and thought deeply. Mr.

added: "The beauty of this reaction lies in the microscopic change. You should be clear and familiar with the process, and you can be at ease in all kinds of chemical things in the future." Since then, the apprentice and others have made a promise to learn about the nucleophilic substitution reaction of ethyl acetate ($S_N2 $).