Chapter 1.2, Problem 1.5P

Interpretation Introduction

Interpretation:

A systematic name for the given compound has to be provided.

Concept Introduction:

Nomenclature of aromatic compounds:

• The parent is benzene ring.  Functional groups attached to it other than hydrogens are called substituents.  The name of substituent must be placed before the name of the compound as a prefix in any substituted hydrocarbon.

  Ex.

• The numerical prefixes such as di, tri, and tetra must be included in the nomenclature if more than one similar substituents are attached to the benzene ring.

  Ex.

• If different substituent groups are attached to the benzene ring, the no. one position is determined by the parent.  So the first step is to choose a suitable parent.  Then the locants are assigned in a manner that gives the lower possible number to the next substituent.

  Ex.

• For disubstituted benzenes, prefixes such as ortho, meta and para should be used.

  Ex.