Question

what is the name of this compound?

compound: OCE 2

Answer 1

While naming the given organic compound, the most prior group is identified. Among $-CHO$ and $-OCH_{3}$ the most prior group is aldehydic group. Thus alkoxy group will be present as the substituent. Since the methoxy group is in para position to the aldehydic group, the name of the compound will be $p-methoxybenzaldehyde$.  

On numbering, methoxy group is at the 4th position to aldehydic group. Thus the it is also named as $4-methoxybenzaldehyde$.

The common name for the compound is $4-anisaldehyde$.

OCH₃