Advices For Studying Organic Chemistry

10.11C AUTOXIDATION

1. ontaining two or more
   double bonds) occurs as an ester in polyunsaturated fats.

Linoleic acid is a polyunsaturated fatty acid (compound c

Linoleic acid (as an ester)

CH 3 (CH 2 ) 4 C (CH 2 ) 7 CO 2 R'

H H

HHH H

2.

espread in the tissues of the body where they perform numerous

vital functions.

3. nds of

1) oms produces a new radical (Lin•) that

2) The result of autoxidation is the formation of a hydroperoxide.

4

1)

ils spoil and for the spontaneous combustion of oily rags left

2) Autoxidation occurs in the body which may cause irreversible damage.

Polyunsaturated fats occur widely in the fats and oils that are components of our

diet and are wid

The hydrogen atoms of the –CH 2 – group located between the two double bo

linoleic ester (Lin–H) are especially susceptible to abstraction by radicals.

Abstraction of one of these hydrogen at

can react with oxygen in autoxidation.

. Autoxidation is a process that occurs in many substances:
Autoxidation is responsible for the development of the rancidity that occurs
when fats and o
open to the air.