Naming Alkynes Worksheet

Naming Alkynes Worksheet

Read each question carefully and provide the correct IUPAC name for the given alkynes or draw the structure from the given name. Remember to identify the longest carbon chain containing the triple bond, number it correctly, and name all substituents.

1. Alkynes are hydrocarbons that contain at least one carbon-carbon   bond.

2. The suffix used for naming alkynes is  .

3. The position of the triple bond is indicated by a   before the -yne suffix.

4. When numbering the parent chain, the triple bond should be given the   possible number.

1. What is the IUPAC name for the compound CH≡C-CH₂-CH₃?

2. Which of the following is the correct name for a compound with 5 carbons and a triple bond at the second carbon?

Provide the IUPAC name for each of the following alkyne structures:

1. CH₃-C≡C-CH₂-CH₃

2. CH₃-CH(CH₃)-C≡C-CH₂-CH₃

3. CH₃-CH₂-C≡C-CH(CH₂CH₃)-CH₃

Draw the condensed structural formula for each of the following alkynes:

1. Hex-1-yne

2. 4-Methylpent-2-yne

3. 3,3-Dimethylbut-1-yne

1. The parent chain in an alkyne must contain the triple bond.

2. When multiple triple bonds are present, the suffix changes to -adiyne, -atriyne, etc.