BrainChildren ChemistryPreview
Open in TheBrain

Chapter 12 Exercise 4 Name an Ether Common Name

Chapter 12 Exercise 4 - Name an Ether (Common Name)

Chapter 12 Exercise

Introduction:

This video explains how to name ethers using their common names, which differs slightly from the IUPAC naming conventions. The focus is on identifying the structure of ethers, determining the backbone, and naming the carbon chains attached to the oxygen atom.

Main Points:

  1. Identifying Ethers:

- Structure: Ethers have an oxygen atom single-bonded to two different carbon chains.

- Backbone: The oxygen atom serves as the backbone for the common name of ethers.

- Common Name: The backbone is always named "ether."

  1. Naming the Carbon Chains:

- Branches: The carbon chains attached to the oxygen are named as branches.

- Naming Conventions: Use standard IUPAC prefixes for the number of carbons, adding "yl" to indicate they are branches.

  1. Examples:

- Example 1 (Di-propyl Ether):

     - **Carbon Chains:** Both sides have three carbons (propyl).
     - **Backbone:** Oxygen (ether).
     - **Common Name:** Combine the branch names and the backbone.
     - **Name:** Di-propyl Ether.
     - **Steps:**
       - Identify three carbons on each side (propyl).
       - Prefix "di-" indicates two identical branches.
       - Combine as "di-propyl ether."

- Example 2 (Cyclohexyl Methyl Ether):

     - **Carbon Chains:** One side has a cyclohexyl group (six-carbon ring), and the other side has one carbon (methyl).
     - **Backbone:** Oxygen (ether).
     - **Common Name:** Combine the branch names and the backbone in alphabetical order.
     - **Name:** Cyclohexyl Methyl Ether.
     - **Steps:**
       - Identify the ring structure (cyclohexyl) and single carbon (methyl).
       - Arrange in alphabetical order (cyclohexyl before methyl).
       - Combine as "cyclohexyl methyl ether."

Conclusion:

Naming ethers using common names involves identifying the oxygen atom as the backbone and naming the carbon chains as branches using IUPAC prefixes. The branches are listed in alphabetical order, followed by the backbone name "ether."

Attachments