1. 1.4 cont’d
ETHERS & THIOLS

2. ETHERS
An ether is an organic compound containing an oxygen atom between 2 carbon atoms in a chain.

3. Ethers can be prepared from alcohols via condensation reactions.

4. PROPERTIES OF ETHERS
BP is higher than those of similar sized alkanes but lower than similar sized alcohols
b/c ethers do not undergo H bonding
ethers have polar bonds (C-O) and a v-shaped molecule (like water)
useful as solvents because they can mix with both polar and nonpolar substances

5. NAMING ETHERS 1. Identify the two alkyl groups.
2. Write the name of the shorter group, then -oxy, then the name of the longer alkyl group as if it were and alkane.

6. EXAMPLE 1: Name the following ether.

7. EXAMPLE 2: Draw the structural formula for 1-ethoxybutane.

8. THIOLS organic compounds that contain a sulfhydryl group (-SH)
-SH group is similar to -OH group
strong odour (ex. garlic, skunk)
Naming Example:
HSCH3 - methanethiol
(simply add “thiol” to the end of the alkane name)

9. HOMEWORK:
p. 38 #1, 2
p. 39 #1, 2, 4, 5