Isomerism of Alcohol

Alcohols exhibits following three types of isomerism.

• Chain isomerism.
• Position isomerism.
• Functional isomerism.

Chain isomerism.

Alcohols containing at least 4-carbon atoms form chain isomerism due to the different structure of C-skeleton in the longest chain.

Position isomerism.

Alcohols containing at least 3 C atoms form position isomerism due to a different position of a hydroxy group (OH).

Example.

Functional isomer.

Alcohols containing at least 2 carbon atoms give functional isomers. The functional isomer of an alcohol is ether.

Example.

Nomenclature.

1. Common system.

In common system of nomenclature,alcohols are named as.

2. IUPAC systems.

In this system, alcohols are given their respective names by adding suffix-‘ol’ with word root.

Question;

Write down the structural formula and IUPAC name of tert.Butyl alcohol.