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.
vanillin*
cinnamaldehyde is a aldehyde hence cinnam(aldehyde)
An aldehyde (as the name says)
An aldehyde (as the name says)
alcohol, aldehyde, aromatic, ether
They have the same functional group.
No because vanillin is phenolic aldehyde (only acetaldehyde give idoform among all ketones)
An aldonization is the formation of an aldol - an aldehyde or ketone with a hydroxy group in the beta- position - usually from a correpsonding aldehyde.
Since it is "dione", it is a ketone, and there should be a comma between the 2 and 3 such as in 2,3-butanedione.
Yes, it contains carbonyl functional group- aldehyde! :)
Vanillin contain as functional groups ether, hydoxyl and aldehyde.