Question
Write the IUPAC names of the following structural formulae: $\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CHO}$
✓
Answer
The number of carbon atoms in the longest chain: 4
Parent alkane : Butane Functional group: $-\mathrm{CHO}$ (al)
Assign the number: 1
Assign the number ' 1 ' to carbon in the functional group
If the carbon chain of the compound contains a $-\mathrm{CHO}$ group then change the ending of the parent name, i.e. ' $e$ ' of the butane is replaced by 'al'.
Parent suffix: Butanal
IUPAC name: Butanal
Parent alkane : Butane Functional group: $-\mathrm{CHO}$ (al)
Assign the number: 1
Assign the number ' 1 ' to carbon in the functional group
If the carbon chain of the compound contains a $-\mathrm{CHO}$ group then change the ending of the parent name, i.e. ' $e$ ' of the butane is replaced by 'al'.
Parent suffix: Butanal
IUPAC name: Butanal
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