IUPAC Name of C₇H₁₂ | 4-methylhex-1-yne
What is the IUPAC name of C₇H₁₂?
The IUPAC name of C₇H₁₂ is 4-methylhex-1-yne. It is a alkyne with a 6-carbon parent chain (hex-1-yne) with a methyl at position 4 substituent.
| Formula | C₇H₁₂ |
| IUPAC Name | 4-methylhex-1-yne |
| Compound Class | Alkyne |
| Parent Chain | hex-1-yne (6 carbons) |
| Substituents | methyl at C4 |
| Difficulty | Advanced |
Step 1: Identify the Parent Chain
The longest continuous carbon chain in C₇H₁₂ contains 6 carbon atoms, giving the parent name hex-1-yne. The parent chain must include the carbon-carbon triple bond.
Step 2: Number and Name Substituents
Number the parent chain so that substituents receive the lowest possible locants. 4-methylhex-1-yne has one substituent:
- methyl at carbon 4
Step 3: Assemble the IUPAC Name
Combine the substituent locants and names (in alphabetical order) as prefixes to the parent chain name. If two or more identical substituents are present, use the multiplying prefixes di-, tri-, tetra-, etc. The complete IUPAC name is 4-methylhex-1-yne.
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