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。

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问题:

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 Me2SO4中的“Me”表示         

(2)E 中的官能团有: __________________(写名称)。

(3)F 的结构简式为________________________________________________。

(4)反应③可以看成是两步反应的总反应,第一步是氰基(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FeCl3溶液发生显色反应; ②能发生银镜反应 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;

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:

考点:结构简式结构式
题型:填空题

如果要建一座四面朝北的房屋,应该修建在 [ ]

A.北极点上

B.南极点上

C.赤道上

D.不能修建

题型:填空题

在一幅条形统计图中,如果用2厘米长的直条表示100吨,那么3.5厘米长的直条表示______吨,300吨要用______厘米的直条表示.

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照明装置及移动电具巡视检查的项目与要求:所有移动电具的绝缘电阻不应小于BMΩ,引线和插头应完整无损;所有移动电具宜装剩余电流动作保护器;插座和开关应完整无损、安装牢固等。详见第四章第八节。所有灯具、开关应适应环境的需要,如在特别潮湿有腐蚀性蒸汽和气体、有易燃易爆的场所和户外,因采用合适的()的灯具和开关。

A、防潮;

B、防爆;

C、防高温;

D、防雨。

题型:填空题

下列各项人类活动,不会破坏生态环境的是   

A.在道路两旁种上风景树

B.任意砍伐森林中已经成材的树木

C.抓捕野生动物,关入笼中饲养

D.在房前屋后栽种巴西铁、石榴等能吸收有毒物质的植物

题型:填空题

Phyllis Wheatley is regarded as America’’s first black poet. She was born in Senegal, Africa, about 1753 and brought to America aboard a slave ship at about the age of seven. John and Susannah Wheatley bought her for three pounds at a slave auction in Boston in 1761 to be a personal servant of Mrs. Wheatley. The family had three other slaves, and all were treated with respect. Phyllis was soon accepted as one of the family, which included being raised and educated with the Wheatley’’s twin 15-year-old children, Mary and Nathaniel. At that time, most females, even from better families, could not read and write, but Mary was probably one of the best educated young women in Boston. Mary wanted to become a teacher, and in fact, it was Mary who decided to take charge of Phyllis’’s education. Phyllis soon displayed her remarkable talents. At the age of twelve she was reading the Greek and Latin classics and passages from the Bible. And eventually, Mrs. Wheatley decided Phyllis should become a Christian.At the age of thirteen Phyllis wrote her first poem. She became a Boston sensation after she wrote a poem on the death of the evangelical preacher George Whitfield in 1770. It became common practice in Boston to have "Mrs. Wheatley’’s Phyllis" read poetry in polite society. Mary married in 1771, and Phyllis later moved to the country because of poor health, as a teacher and caretaker to a farmer’’s three children. Mary had tried to interest publishers in Phyllis’’s poems but once they heard she was a Negro they weren’’t interested.Then in 1773 Phyllis went with Nathaniel, who was now a businessman, to London. It was thought that a sea voyage might improve her health. Thirty-nine of her poems were published in London as Poems on Various Subjects, Religious and Moral. It was the first book published by a black American. In 1775 Phyllis wrote a poem extolling the accomplishments of George Washington and sent it to him. He responded by praising her talents and inviting her to visit his headquarters. After both of her benefactors died in 1777, and Mary died in 1778, Phyllis was freed as a slave. She married in 1778, moved away from Boston, and had three children. But after the unhappy marriage, she moved back to Boston, and died in poverty at the age of thirty.

According to the passage, how many slaves did the Wheatley’s have

A.One.

B.Two.

C.Three.

D.Four.

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