Carbonyl
The functional group of citral is the aldehyde (alkanal) group. It has the structure -CHO
Carbonyl
Carbonyl
The functional groups in vanillin are a hydroxyl group (-OH) and an aldehyde group (-CHO).
aldehyde
They have the same functional group.
Carbonyl
The functional group of biphenyl is aromatic ring, benzene.
From its structure, we can see that vanillin does not have a ketone functional group, but it has an aldehyde. It also has a phenol and ether functional group. For that reason, I wouldn't categorize is as just an aldehyde.
An amino aldehyde is an organic compound containing both an amino and an aliphatic aldehyde functional group.
The functional group of an aldehyde is a carbonyl group (C=O) with a hydrogen atom bonded to the carbon atom adjacent to the oxygen atom.
An aldehyde contains a carbonyl group, which is a carbon atom double-bonded to an oxygen atom.