Advices For Studying Organic Chemistry

(Wang) #1

  1. Reduction of an organic molecule usually corresponds to increasing its
    hydrogen content or to decreasing its oxygen content.



  1. Converting a carboxylic acid to an aldehyde is a reduction:


C OH

O O
R

[H]
RCH

Oxygen content decreases

reduction
[H] stands for a reduction of the compound
2) Converting an aldehyde to an alcohol is a reduction:

RCH

O
[H] RCH 2 OH
reduction

Hydrogen content increases

3) Converting a n alcohol to an alkane is a reduction:

RCH 2 OH [H] RCH 3
reduction

Oxygen content decreases


  1. Oxidation of an organic molecule usually corresponds to increasing its oxygen
    content or to decreasing its hydrogen content.


R CH 3 CH 2 OH CH

O
COH

O
R

[ O ]
[ H ]

[ O ]
[ H ] R

[ O ]
Lowest [ H ] R
oxidation
state

Highest
oxidation
state
[O] stands for an oxidation of the compound
1) Oxidation of an organic compound may be more broadly defined as a reaction
that increases its content of any element more electronegative than carbon.
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