Question

What is the IUPAC name of the compound ${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{O}{\left({\mathrm{CH}}_2\right)}_6{\mathrm{CH}}_3$?

Answer 1

IUPAC Nomenclature

• “In order to clearly identify the compound, a systematic method of naming has been developed and is known as the IUPAC (Internation Union of Pure and Applied Chemistry) system of nomenclature.”

Step 1: Determination of root word:

• In order to define the length of the carbon chain names are, For one carbon atom - Methane $\left({\mathrm{CH}}_4\right)$, for two carbon atoms chain- Ethane $\left({\mathrm{CH}}_3{\mathrm{CH}}_3\right)$, for three carbon atoms chain- Propane, and so on.
• The root word here is ‘-Hept’.

Step 2: Determination of functional group:

• IUPAC’s nomenclature of ethers, According to IUPAC naming, a substituent group containing more carbon atoms is chosen as the parent hydrocarbon. The other substituent group attached to the oxygen atom is named with the prefix “oxy”. Since the ether group is present at the first carbon. Thus “1” is added.

Step 3: Structure of ${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{O}{\left({\mathrm{CH}}_2\right)}_6{\mathrm{CH}}_3$:

• The structure of ${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{O}{\left({\mathrm{CH}}_2\right)}_6{\mathrm{CH}}_3$ is as follows,

• Hence, the IUPAC name of ${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{O}{\left({\mathrm{CH}}_2\right)}_6{\mathrm{CH}}_3$ is 1-phenoxy heptane.