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研究生考试模拟试题二

研究生考试模拟试题二
研究生考试模拟试题二

研究生考试模拟试题二

一、按指定要求回答问题

1.按稳定性由大到小排列自由基

CH3CH2CH2CH2CH2(CH3)2CHCHCH3

CH3CH2CHCH2

CH3CH3CH2

CH3

CH3

(1)(2)(3)(4)

2.按和LUCAS试剂反应速度由大到小排列

CH2OH CH2OH

CH2OH CH2OH

CH3OCH3NO2

(1)(2)(3)

(4) 3.按和硝酸银醇溶液反应速度快慢排列

CH3CH2CHCH3

Cl CH3

CH3

CH3

CH2Cl

C C

H3C

H3C

Cl

(1)(2)(3)(4) 4.按亲核加成活性大小次序排列

ClCH2CHO CHO C

2

H5CHO BrCH2CHO

(1)(2)(3)

(4)

5.按和氢氧化钠水溶液反应速度快慢排序

O O

CH3CO2C2H5CH3CON(CH3)2

(1)(2)(3)

6.按酸性由强到弱排列

NH2

NHCOCH3NH NHCH3

O

O

(1)(2)(3)(4)

7.按酸性由强到弱排列

OH OCH3CO2H CO2H

OH

CO2H

OCH3

(1)(2)(3)(4) 8.碱性溶液中水解速度排序

CO2Et NH2

CO2Et

CH3

CO2Et

NO2

CO2Et (2)

(1)(3)(4)

9.下列化合物能够拆分成光活体的是

CH2CHCH2OH

CH2OH H2C

CO2H

CO2H

HO2C

H

H

CHC2H5

CO2H

HO2C

(1)(2)(3)(4) 10.下列化合物具有芳香性的是

O

CH3

H3C

(1)(2)(3)(4)

11.按燃烧热由大到小顺序排列

(1)(2)(3)

12.按烯醇化程度由高到低顺序排列

O

O

O O

O

O

O

O O (1)(2)

(3)(4)

13.下列化合物不能作为双烯体发生Diels-Alder反应的是

O

(1)(2)(3)(4)

14.下列化合物哪一个能够溶于碳酸氢钠溶液

(1)苯胺(2)对甲基苯酚(3)苯甲酸(4)乙酰苯胺

15. 按在乙醇钠的乙醇溶液中反应速度快慢排列

3

)3

H3

3

)3

H3

3

H3

(1)

(2)(3)

16.哪一种化合物不能用来干燥甲醇

(1)无水氯化钙(2)氧化钙(3)甲醇镁(4)无水硫酸钠

17. 下列化合物不具有芳香性的是

O

(1)(2)(3)(4)

18.下列化合物与溴加成反应速度快慢排序

(1)(2)(3)(4)

二、完成下列反应

Br

CH

2

Cl

LiAlH4(3mol)

O

O

H2O

?+?

CH2CHCH2CH

3

Br

?

(RO)2

?

H3

H3

3

HCl

H2O2/NaOH

(1)

(2)

(3)

(4)

(5)

CH

3

H3

C

OCH2CH CH2

??

H3

H

3

(H32

?

H3C

H3C

D

(6)

(7)

2

Et

2

Et

+

O

O

O

CH2COCH3

2

O

3

H2

C COCl

CH3

H

??

(8)

(9)

(10)

OH

??

?

CH3

Cl Br

Br

4

OCH3

H3

C

CH3CHCH2CH2COOK

Cl

(11)

(12)

(13)

(14)

(15)

N

H

CH3

CH3

H3C

2

heat

O2N NO2

NO2

Cl

NH

O CH

3

CHClCO2C2H5

NH2NH2

?+?

(16)

(17)

(18)

N 2Cl

+

HO

CH

3

CH 3

N(CH 3)2

+

HCON(CH 3)

2

HO

Br

OH

Ph 3PCH 2CH 2CH

2CH 3Br

(19)

(20)

(21)

(22)

(23)

三、试用化学方法分离或鉴别下列化合物 1、试用化学方法区分

C 2H 5

CHCH 3

C

CH

2、试用化学方法鉴别苯胺、苄胺、N,N-二甲基苄胺、N,N-二甲基苯胺。

3、试用化学方法分离苯甲醛、苯甲酸、苯甲醇。 四、结构推导

1、化合物A (C 6H 12O 3)与I 2的氢氧化钠溶液作用生成黄色沉淀,与TOLLEN 试剂不反应。用稀硫酸处理A 得到B,B 可以和TOLLEN 试剂反应。A 的红外光谱在1710cm -1有强吸收。A 的NMR 数据为:δ2.1(s,3H ),δ2.6(d,2H),δ3.2(s,6H),δ4.7(t,1H).试推测A 结构式并指标峰归属。

2、化合物A (C 16H 13O 2N )不溶于冷的稀碱溶液。但与稀碱溶液共热部分水解可得澄清溶液。将此澄清溶液并用稀硫酸酸化可得固体B(C 16H 15O 3N)。B 与较浓的盐酸共热后可得固体酸C (C 8H 6O 4).C 加热后可得分子式为(C 8H 4O 3)化合物D ,分出C 后的母液经浓缩可得E (C 8H 12NCl,一个盐酸盐)。E 的水溶液经亚硝酸处理后在氯化亚铜存在下加热生成化合物F(C8H9Cl),F 经剧烈氧化后生成对氯苯甲酸,试写出A-F 结构。

五、写出下列反应的历程(标出电子转移方向)

CO 2

H

CH 2OH

O

O 1.

O

3

COCH3

CH3

O

(2)

EtO

六、由指定原料及不超出2个碳的试剂合成

Cl

Cl

Cl

I

CH3

CO2C

2

H5

O

O

C C2H5

CH3

OC2H

5

CH3

CHO

(1)

(2)

(3)

(4)

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