ORGANIC CHEMISTRY

 hydroxy compound 

                Classification of alcohol.

     Alcohols can be classified based on the number of hydroxyl groups and the nature of the

carbon to which the functional group (–OH) is attached.

Alcohols

(Monohydric alcohols)

containing only one - OH group

CH3 - CH2 - OH(ethanol)

(Polyhydric alcohols)

containing more than

one -OH group

-OH group attached to

sp3 hybridised carbon

-OH group attached to

sp2

hybridised carbon

eg: vinyl alcohol

CH2 = CH - OH

ethenol

–OH group attached to

alkyl group

1 alcohol CH3 -C-OH

H

H

ethanol

CH2 = CH - CH2 - OH

Prop-2-en-1-ol

3 12 C6H5 - CH2 - OH

Phenylmethanol

alcohol CH3 -C-OH

CH3

H

propan-2-ol

CH2 = CH - CH - OH

1

3 2

C6H5 - CH - OH 2 4

CH3

-3-en-2-ol

CH3 2

1

1-phenylethanol

alcohol CH3 -C-OH

CH3

CH3

CH2 = CH-C- OH

1

4 23

C6H5 3 -C-OH

CH3

CH3

2-methylpropan-2-ol 2-methylbut-3-en-2-ol

CH3

CH3

2-phenylpropan-2-ol