Question

Question: Draw the isomers for the following compounds and then name each one:

a. 2-methyl-2,4-hexadiene

b. 2,4-heptadiene

c. 1,3-pentadiene

Short answer

1. 2 isomers- (E)-2-methyl-2,4-hexadiene and (Z)-2-methyl-2,4-hexadiene.

1. 4 isomers- (2E,4E)-2,4-heptadiene, (2E,4Z)-2,4-heptadiene,

(2Z,4E)-2,4-heptadiene and (2Z,4Z)-2,4-heptadiene.

2 isomers- (E)-1,3-pentadiene and (Z)-1,3-pentadiene

Step-by-step solution

Definition of isomers-

Isomers are compounds that have the same number of atoms, i.e., the same empirical formula, but differ in the way the atoms are organised.

Finding isomer of 2-methyl-2,4-hexadiene-

There are 2 isomers formed which are shown and named as below-

Finding isomer of 2,4-heptadiene-

There are 4 isomers formed which are shown and named as below-

Finding isomer of 1,3-pentadiene-

There are 2 isomers formed which are shown and named as below-