유기산( carboxylic acid) - …ª©차 1. naming carboxylic acid. 2. structure and physical...

Click here to load reader

Post on 11-Jun-2018

217 views

Category:

Documents

0 download

Embed Size (px)

TRANSCRIPT

  • ( Carboxylic Acid)

  • 1. Naming Carboxylic Acid.

    2. Structure and Physical Properties of

    Carboxylic Acids.

    3. Dissociation of Carboxylic Acid.

    4. Substituent Effects on Acidity.

    5. Substituent Effects in substituted

    Benzoic Acids.

    6. Preparation of Carboxylic Acids.

    7. Reactions of Carboxylic Acids : An Overview

    8. Spectroscopy of Carboxylic Acids.

    9. Summary

  • 1. Naming Carboxylic Acid .

    e oic acid .

    C1 .

    )

  • COOH() .

    carboxylic acid . ,

    COOH C1 .)

  • IUPAC .

    Formic acis Acetic acid .

    Acrylic acid .

  • 2. Structure And Physical Properties Of Carboxylic Acids.

    sp2, dimer() .

    Boiling point .

  • 3. Dissociation Of Carboxylic Acid. NaOH NaCO3 RCO2

    -+M .

    H3O

    + RCO2-

    .

  • 65

    2

    2

    2

    3

    105.55

    10][

    5.55][

    ]][[]][[

    +

    ==

    =

    =

    OHKK

    molOH

    OHRCOOHOHRCOOK

    a

  • - -

  • * OH ?

    Alkoxide ion Carboxilic acid Delocalized() , Carboxilic acid ion .

  • Alkoxide ion .

  • - 127pm, Formic acid C=O (120pm) C-O(134pm) .

    Formic acid ion .

  • 4. Substituent Effects On Acidity.

  • - : , , .

    - : .

  • Acetic acid

  • : .

    CH3CH2COOH , BrCH2COOH , FCH2COOH

    . FCH2COOH > BrCH2COOH > CH3CH2COOH

  • 5. Substituent Effects in Substituted Benzoic Acids. - , - .

    -() , -() Benzoic acid .

  • 6.Preparation of Carboxylic Acids. KMnO4 Na2Cr2O7 Benzoic acid .

    , KMnO4 .

  • R-CN

    Grignard Grignard CO2 ,

    .

  • ** Grignard , RX Ether tetratrahyrofuran(THF) , RMgX . Victor Grignard Grignard , - .

    , ,

    Cl , Br , I .

  • 7. Reactions Of Carboxylic Acids : An Overview

  • .

    LiAlH4 . Tetrahydrofuran .

  • 8. Spectroscopy Of Carboxylic Acids. .

    IR .

    O-H 2500~3300cm-1 .

    C=O 1710~1760 .

    Free 1760cm-1 , 1710cm-1 .