Write down the IUPAC names of the compounds given.
CH3—CH2—CH = CH—CH2—CH2—CH3
The IUPAC names of the given compounds with proper numbering of the main chain and the substituents keeping in mind the fact that the numbering is done so as to choose the longest branch of carbon and giving the carbon bearing the substituent or the functional group the lowest number as possible are as follows: -
1. At first we find the longest chain of the carbon atom. Here, the longest chain is having 7 C atoms.
2. Hence, the word root is hept.
3. Now, there is a unsaturation between the 3rd and 4th carbon atoms which is a double bond so a suffix ene is required to be added.
4. ∴ The name is hept-3-ene.
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