Chapter 14.3, Problem 2QQ

Interpretation Introduction

Interpretation:

The correct common name for the given compound has to be chosen from the given options.

Concept Introduction:

Common name:

    Common name for alcohol can be obtained by considering the hydroxyl group to be substituted on an alkyl group. The common name for alcohol can be given as alkyl alcohol.

IUPAC rules for naming alcohols that contain single hydroxyl group:

• Longest carbon chain has to be identified that contains hydroxyl group also. The chain name is obtained by replacing the letter “-e” in alkane with “-ol”.
• The numbering has to be given so that the hydroxyl group gets the least numbering.
• Name and location of any other substituent present in the chain has to be identified.
• If in a ring the hydroxyl group is present, then that carbon is numbered 1 and the numbering then proceeds counterclockwise or clockwise in a way that substituents present if any gets the least numbering.
• Hydroxyl group as a substituent in a molecule is named as hydroxy group rather than hydroxyl group.

IUPAC rules for naming alcohols that contain more than one hydroxyl group:

• The same rules said above is followed but the prefix di-, tri-, tetra etc is added corresponding to the number of hydroxyl groups that is present.