Question

Draw skeletal structures for the compounds in Problem 3, including any cis-trans isomers.

Short answer

The skeletal structures for the compounds in Problem 3, including any cis-trans isomers

Step-by-step solution

Step 1: The skeletal structure

In this series of atoms bonded together, it is aform of the essential structure of the compound. This skeleton can consist of chairs, branches, and rings of bonded atoms. Example: The skeletal structure of a sec-butyl tert-butyl ether is shown below

Definition of the cis and trans isomer

Isomersare compounds with the same molecular formula but with a different arrangement of atoms.

Cis-isomer is represented with both the substituents pointing in one direction.

Trans-isomer is represented with both the substituents pointing in opposite directions.

Subpart (a)

The skeletal structure of compound a is shown below.

This compound consists of both the cis and trans isomers.

Subpart (b)

The skeletal structure of compound b is shown below.

Here, the structure has the possibility of forming the cis form only.

Subpart (c)

The skeletal structure of compound c is shown below.

This compound also consists of both the cis and trans isomers.

Subpart (d)

The skeletal structure of compound d is shown below.

The terminal alkene cannot have cis-trans isomerization.