Question

Write the IUPAC name of :

Hint:

Priority order of functional groups is crucial: $-COOH>-SO_3H>-COOR>-COX>-CONH_2>-CN>-CHO>>C=O>-OH>-NH_2$.

Answer 1

Step 1: Understanding the Concept:
The compound shown is Salicylaldehyde. In IUPAC nomenclature, we must identify the principal functional group to determine the parent name and numbering.
Step 3: Detailed Explanation:
The molecule contains two functional groups: an aldehyde group (\(-CHO\)) and a hydroxyl group (\(-OH\)).
According to priority rules, the aldehyde group has higher priority than the hydroxyl group.
Thus, the parent name is "benzaldehyde".
We number the carbon atoms starting from the Carbon attached to the aldehyde group (\(C1\)).
The hydroxyl group is at the second position (\(C2\)).
Therefore, the name is 2-Hydroxybenzaldehyde.
Step 4: Final Answer:
The IUPAC name is 2-Hydroxybenzaldehyde.