一对一专业教师辅导 成绩快速冲A+ 获取专属备考攻略
最新动向
联系我们
在线咨询
热门标签
猜您喜欢

A-level有机化学——化学反应总结

2017-06-30 15:09:16 372人已读 分享到

    在学习A-level化学时,要学会总结题目中涉及到的化学反应类型,一点一滴地积累,从而做到积少成多。下面就是在A-level有机化学中涉及到的化学反应。

    1.    Alkane à chloroalkane

      reagents: Cl2
      conditions: UV light
      mechanism: free radical substitution
      equation: RH + Cl2 à RCl + HCl
    2.    Alkene à polyalkene
      Conditions: low T, high p.
      Equation:
   

A-level化学——有机化学中涉及到的反应

      Type of reaction: addition polymerisation (free radical)
    3.    Alkene à bromoalkane
      Reagent: HX(g)
      Conditions:  room T
      Equation:

A-level化学——有机化学中涉及到的反应


      Type of reaction: electrophilic addition
    4.    Alkene à dibromoalkane
      Reagent: Br2 in water or in an organic solvent
      Conditions:  room T
      Equation:

A-level化学——有机化学中涉及到的反应

      Mechanism: electrophilic addition
    5.    Alkene à alkylhydrogensulphate
      Reagent: concentrated sulphuric acid
      Conditions: cold
       Equation:

A-level化学——有机化学中涉及到的反应

      Mechanism: electrophilic addition
    6.    Alkylhydrogensulphate à alcohol

      Reagent: water
      Conditions: warm
      Equation:

A-level化学——有机化学中涉及到的反应

      Type of reaction: hydrolysis
    7.    Alkene à alcohol
      Reagent: steam
      Conditions: 300 oC, 60 atm, H3PO4 catalyst
      Equation:

A-level化学——有机化学中涉及到的反应

      Type of reaction: hydration
    8.    Haloalkane à alcohol
      Reagent: NaOH(aq) or KOH(aq)
      Conditions: warm under reflux
      Equation: R-X + OH- à R-OH + X-
      Type of reaction: nucleophilic substitution
    9.    Haloalkane à nitrile
      Reagent: KCN in aqueous ethanol
      Conditions: boil under reflux
      Equation: R-X + CN- à R-CN + X-
      Type of reaction: nucleophilic substitution

    10.  Haloalkane à Amine

      Reagent: ammonia in ethanol in a sealed tube
      Conditions: heat
      Equation: R-X + 2NH3 à R-NH2 + NH4X
      Type of reaction: nucleophilic substitution
    11.  Haloalkane à alkene

      Reagent: KOH in ethanol
      Conditions: heat
      Equation:

A-level化学——有机化学中涉及到的反应

      Type of reaction: elimination
    12.  Primary alcohol à aldehyde
      Reagent: potassium dichromate and dilute sulphuric acid
      Conditions: warm, distillation
      Equation: RCH2OH + [O] à RCHO + H2O
      Type of reaction: mild oxidation
    13.   Secondary alcohol à ketone

      Reagent: potassium dichromate and dilute sulphuric acid
      Conditions: heat, distillation
      Equation: R1CH(OH)R2 + [O] à R1COR2 + H2O
      Type of reaction: oxidation
    14.  aldehyde à carboxylic acid
      Reagent: potassium dichromate and dilute sulphuric acid
      Conditions: heat, reflux
      Equation: R-CHO + [O] à R-COOH
      Type of reaction: oxidation
    15.  Alcohols à alkenes
      Reagent: concentrated sulphuric acid
      Conditions: heat
      Equation:

A-level化学——有机化学中涉及到的反应

      Type of reaction: elimination
    16.  glucose à ethanol
      reagent: yeast
      conditions: 35 – 55 oC, no air
      equation: C6H12O6 à 2C2H5OH + 2CO2
      type of reaction: fermentation



在线咨询

公司介绍 隐私条款 免责声明 网站地图 联系我们

关注大英留学公众号,获取英国留学考试第一资讯
添加英联邦留学考试小管家,定制专属学习计划
备案号:苏ICP备17009794号-16 Copyright 2017-2018 AOLEVEL.ORG.CN All Rights Reserved Powered by 南京课窝教育.
4008506500

请填写您的联系方式

如有最新备考攻略或资料,我们会以短信的形式通知给您


发送验证码

确定提交