题目

胡椒醛衍生物在香料、农药、医药等领域有着广泛的用途，以香草醛(A)为原料合成5－三氟甲基胡椒醛(E)的路线如图所示： 已知：Ⅰ.酚羟基能与CH2I2发生反应③，而醇羟基则不能； (1)反应①的类型是________。 (2)写出香草醛中含氧官能团的名称：________。 (3)写出反应③的化学方程式：_______________________________________________。 (4)写出满足下列条件的香草醛一种同分异构体的结构简式：________________________。 ①能与碳酸氢钠溶液反应放出气体；②不与氯化铁溶听句子，选择正确答语。句子读一遍。(     )1. A. Three years ago.           B. Yes, twice.           C. No, I can't. (     )2. A. Oh, my goodness!         B. It doesn't matter.  C. That's OK.(     )3. A. You may learn it by yourself.            B. Maybe you can go to Ren'ai English Training School.            C. You could improve your English with your friends. (     )4. A. No, my English is poor.  B. Not at all.            C. Thank you for your praise. (     )5. A. It was made by workers.            B. It was made for transporting.            C. It was made in Dalian in 2004.