当前位置:首页>复习资料>【2026版化学步步高大二轮专题复习讲义专题九第43练有机合成与推断综合分析(A)

【2026版化学步步高大二轮专题复习讲义专题九第43练有机合成与推断综合分析(A)

  • 2026-02-15 15:29:43
【2026版化学步步高大二轮专题复习讲义专题九第43练有机合成与推断综合分析(A)

n

第43练 有机合成与推断综合分析(A)

[分值:50]

1.(12分)(2023·辽宁,19)加兰他敏是一种天然生物碱,可作为阿尔茨海默症的药物,其中间体的合成路线如下。

已知:

Bn为

3NH21为烃基,R2、R3为烃基或H)回答下列问题:

(1)A中与卤代烃成醚活性高的羟基位于酯基的位(填)。 

(2)C发生酸性水解,新产生的官能团为羟基和(填名称)。 

(3)用O2代替PCC完成DE的转化,化学方程式为。 

(4)F的同分异构体中,红外光谱显示有酚羟基、无N—H键的共有种。 

(5)HI的反应类型为。 

(6)某药物中间体的合成路线如下(部分反应条件已略去),其中M和N的结构简式分别为。 

答案 (1)对 (2)羧基

(3)2+O22O

(4)3 (5)取代反应

(6)

解析(2)有机物C在酸性条件下发生水解,其含有的酯基发生水解生成羧基。(4)F的同分异构体中不含有NH键,说明结构中含有结构,又因红外光谱中显示有酚羟基,说明结构中含有苯环和羟基,固定羟基的位置,有邻、间、对三种情况,故有3种同分异构体。(6)利用逆合成法分析,有机物N可以与NaBH4反应生成最终产物,类似于题中有机物GNaBH4反应生成有机物H,故有机物N的结构为,有机物M可以发生已知条件所给的反应生成有机物N,说明有机物M中含有C==O,结合反应原料中含有羟基,说明原料生成有机物M发生的反应是羟基的催化氧化,有机物M的结构为

2.(12分)(2025·北京,17)一种受体拮抗剂中间体P合成路线如下。

已知:RCOOHRCOCl;

试剂a是。

(1)I分子中含有的官能团是硝基和。 

(2)BD的化学方程式是。 

(3)下列说法正确的是(填序号)。 

a.试剂a的核磁共振氢谱有3组峰

b.JK的过程中,利用了(CH3CH2)3N的碱性

c.FG与KL的反应均为还原反应

(4)以G和M为原料合成P分为三步反应。

已知:

M含有1个sp杂化的碳原子。M的结构简式为。 

Y的结构简式为。 

(5)P的合成路线中,有两处氨基的保护,分别是:

AB引入保护基,DE脱除保护基;

。 

答案 (1)碳氟键、羧基

(2) (3)bc

(4)

(5)EF引入保护基,YP脱除保护基

解析 A为苯胺,与乙酸反应得到B(),B与浓硫酸和浓硝酸加热发生硝化反应得到D(),D水解得到E(),E与试剂a反应得到F(),FH2发生还原反应得到G,ISOCl2在碱性条件下反应得到J(),JCH3OH反应得到K,根据K的分子式可以确定K还原得到L,L进一步反应得到M,根据M的分子式且M含有1sp杂化的碳原子可以确定M的结构简式为,结合最后产物P的结构,MN==C发生加成反应得到X,X的结构简式为在碱性条件下脱除CH3OH得到Y,Y的结构简式为。(3)试剂a中有一种等效氢原子,核磁共振氢谱显示一组峰,a错误;JK生成物有HCl,加入碱性物质(CH3CH2)3N,与生成的HCl反应,促进反应正向进行,b正确;根据分析,FGKL的反应均为硝基转化为氨基,为还原反应,c正确。

3.(16分)(2025·辽宁抚顺六校协作体模拟)化合物I是一种新型杀菌剂,广泛应用于谷物病虫害的防治。以下为化合物I的简化部分条件的合成路线。

已知:R—X+MgR—MgX(R为烃基)。

回答下列问题:

(1)化合物A的系统名称是。 

通过网盘分享的文件:2026版化学步步高大二轮专题复习【通用版】

链接: https://pan.baidu.com/s/1qU2fefC24s-mrlVQEwKSwQ?pwd=4321 提取码: 4321 

--来自百度网盘超级会员v8的分享

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  128. /yingpanguazai/ssd/ssd1/www/i.67808.cn/vendor/topthink/think-helper/src/Collection.php ( 16.47 KB )
  129. /yingpanguazai/ssd/ssd1/www/i.67808.cn/vendor/topthink/framework/src/think/facade/View.php ( 1.70 KB )
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  137. /yingpanguazai/ssd/ssd1/www/i.67808.cn/vendor/topthink/think-template/src/template/driver/File.php ( 2.41 KB )
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  1. CONNECT:[ UseTime:0.000532s ] mysql:host=127.0.0.1;port=3306;dbname=i_67808;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000764s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000560s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000251s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000493s ]
  6. SELECT * FROM `set` [ RunTime:0.000198s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000558s ]
  8. SELECT * FROM `article` WHERE `id` = 461104 LIMIT 1 [ RunTime:0.000589s ]
  9. UPDATE `article` SET `lasttime` = 1771154157 WHERE `id` = 461104 [ RunTime:0.002318s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.001227s ]
  11. SELECT * FROM `article` WHERE `id` < 461104 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000511s ]
  12. SELECT * FROM `article` WHERE `id` > 461104 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001285s ]
  13. SELECT * FROM `article` WHERE `id` < 461104 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.014581s ]
  14. SELECT * FROM `article` WHERE `id` < 461104 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.006384s ]
  15. SELECT * FROM `article` WHERE `id` < 461104 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.012153s ]
0.120514s