Question

Draw and name all possible aromatic compounds with the formula C₇H₇Cl.

Short answer

Answer

(I)

Chloromethyl benzene

(II)

o-chlorotoluene.

(III)

m-chlorotoluene

(IV)

p-chlorotoluene.

Step-by-step solution

Step-by-Step SolutionStep 1: Isomers

Isomers have the same molecular formula but differ in the connectivity of atoms in the molecule. There are four possible isomers with the molecular formula C₇H₇Cl.

Possible aromatic compounds

For the given formula, the parent compound should be benzene with one methylene group. Disubstituted benzene rings are named using the prefixes ortho (o), meta (m), and para (p). Thus, the names of the isomers with the molecular formulaC₇H₇Cl are as follows:

In this structure (I), the name of the parent ring is benzene and the substituent is -CH₂Cl .So, the name of the compound is chloromethyl benzene.

(I)

Chloromethyl benzene

(II)

In this structure, the name of the parent ring is toluene and the substituent is -Cl which is placed at the ortho position. So, the name of the compound is o-chlorotoluene.

o-chlorotoluene.

(III)

In the given structure, the name of the parent ring is toluene and the substitute is -Cl group, which is placed at meta position So, the name of the compound is m-chlorotoluene.

m-chlorotoluene

(IV)

In the given structure, the name of the parent ring is toluene and the substituent is -Cl group, which is placed at the para position. So, the name of the compound is p-chlorotoluene.

p-chlorotoulene.