hce_kmu
108年
物理及化學
第 78 題
As shown below, compound IV can be prepared from reagents I, II, and III. Which of the following reaction conditions is the most suitable for the preparation of IV?
- A I is slowly added to II, and III is then added to the above mixture.
- B I is slowly added to II, and the resultant mixture is slowly added to III.
- C II is slowly added to I, and III is then added to the above mixture.
- D II is slowly added to I, and the resultant mixture is slowly added to III.
- E I is slowly added to III, and II is then added to the above mixture.
思路引導 VIP
請思考一下：如果我們在反應瓶裡已經準備好了強鹼 LDA，但隨後要加入的兩個化學物質（化合物 I 與 III）其實都擁有可以被鹼拔走的氫原子，我們該採取什麼樣的順序，才能確保只有「我們想要的那個分子」被鹼反應，而不會讓強鹼在第二個分子加入時，還留在瓶子裡『找錯對象』呢？