Question

The IUPAC name of the given compound is:

Answer 1

First find the longest chain present in the compound which should also include that carbon of the functional group having highest priority. Use the suffix of the functional group which has the highest priority.

Complete Step-by-Step Solution:
We will see how the process of IUPAC name of this compound is given.
- We can see that there are two functional groups present in the compound. One is –CHO (aldehyde) and another is –O- (ether) functional group.
- To name any organic compound, we first need to find the functional groups present in it. Then we need to find the functional group present which is of higher priority order. If more than one functional group are present.
- Aldehyde functional group is given higher priority than either group. So, we will use the suffix of the aldehyde group.
- We know that suffix –al is used to name the aldehydes.
- Now, we need to find the longest carbon chain present in the compound. This chain should include that carbon of aldehyde. So, that parent chain is of two carbons.
- We will take either group as a substitute. As two carbons are there in either group, we can call the substituent 2-ethoxy group. Here, 2 shows that the ethoxy group is on the second carbon of the parent chain.

- So, the IUPAC name of the given compound is 2-ethoxy-ethanal.

Note: Note that we should include the carbon of the higher priority group in the parent chain. The carbon which has the functional group is given number-1 and then the numbering is done.