皮皮学，免费搜题
登录
搜题
【简答题】
阿明洛芬属于苯丙酸类抗炎药，镇痛效果优于布洛芬。下图是阿明洛芬的一条合成路线。 （1）反应①为取代反应，该步反应物 Me 2 SO 4 中的“Me”表示 （2）E 中的官能团有： __________________（写名称）。 （3）F 的结构________________________________________________。 （4）反应③可以看成是两步反应的总反应，第一氰基（一CN）的完全水解反应生成羧基（一COOH )，请写出第二步反应的化学方程式：______________ _____________。 （5）B水解的产物（参见4）有多种同分异构体，写出符合下列条件的一种同分异构体 ①能与FeCl 3 溶液发生显色反应； ②能发生反应 ③核磁共振氢谱共有4个吸收峰 （6）化合物 是合成某些药物的中间体。试设计合理方案由化合物 合成 。 提示：①合成过程中无机试剂任选； ② 在 400℃有金属氧化物存在条件下能发生脱羰基（ ）反应。 ③合成反应流程图表示方法示例如下：
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【单选题】Don’t worry. There’s _________ time left.
A.
little
B.
a few
C.
few
D.
a little
查看完整题目与答案
【单选题】Don't worry. There's still ________ time to go.
A.
little
B.
a little
C.
few
D.
a few
查看完整题目与答案
【单选题】– It’s that seat taken? -__________.
A.
Please don’t worry.
B.
I don’t think so.
C.
Why not?
D.
It’s very nice.
查看完整题目与答案
【单选题】Xiaodong ______ goes to school by bike. She walks to school.
A.
always
B.
often
C.
sometimes
D.
never
查看完整题目与答案
【单选题】She never goes to the cinema
A.
偶尔
B.
总是
C.
从不
查看完整题目与答案
【单选题】— John, don’t waste any time and there’s only 25 minutes left before the train leaves. — Don’t worry, mum. I think I can ______ it.
A.
manage
B.
make
C.
do
D.
achieve
查看完整题目与答案
【单选题】-I got an A in Physics. -( ).
A.
Don't worry about it
B.
Congratulations! That's a difficult course
C.
You are very good
D.
Good luck to you!
查看完整题目与答案
【单选题】______________ worry! [     ]
A.
 No
B.
 Not
C.
 Don't
查看完整题目与答案
【单选题】In the evening the General Manager gave a banquet at the International Hotel ______ the foreign guests. [     ]
A.
in honor of
B.
in place of
C.
in face of
D.
in favor of
查看完整题目与答案
【单选题】In the evening the car broke down suddenly and the heavy rain the helplessness of the girl driver on the country road.
A.
resulted from
B.
made up
C.
turned out
D.
added to
查看完整题目与答案
相关题目：
【单选题】Don’t worry. There’s _________ time left.
A.
little
B.
a few
C.
few
D.
a little
查看完整题目与答案
【单选题】Don't worry. There's still ________ time to go.
A.
little
B.
a little
C.
few
D.
a few
查看完整题目与答案
【单选题】– It’s that seat taken? -__________.
A.
Please don’t worry.
B.
I don’t think so.
C.
Why not?
D.
It’s very nice.
查看完整题目与答案
【单选题】Xiaodong ______ goes to school by bike. She walks to school.
A.
always
B.
often
C.
sometimes
D.
never
查看完整题目与答案
【单选题】She never goes to the cinema
A.
偶尔
B.
总是
C.
从不
查看完整题目与答案
【单选题】— John, don’t waste any time and there’s only 25 minutes left before the train leaves. — Don’t worry, mum. I think I can ______ it.
A.
manage
B.
make
C.
do
D.
achieve
查看完整题目与答案
【单选题】-I got an A in Physics. -( ).
A.
Don't worry about it
B.
Congratulations! That's a difficult course
C.
You are very good
D.
Good luck to you!
查看完整题目与答案
【单选题】______________ worry! [     ]
A.
 No
B.
 Not
C.
 Don't
查看完整题目与答案
【单选题】In the evening the General Manager gave a banquet at the International Hotel ______ the foreign guests. [     ]
A.
in honor of
B.
in place of
C.
in face of
D.
in favor of
查看完整题目与答案
【单选题】In the evening the car broke down suddenly and the heavy rain the helplessness of the girl driver on the country road.
A.
resulted from
B.
made up
C.
turned out
D.
added to
查看完整题目与答案