Functional group in aspartame molecule

[desmond iking]

Homework Statement

which functional group is present in aspatame molecule?

Homework Equations

The Attempt at a Solution

why the carbonyl group COO- is not present in the diagram? I can find it in the diagram

 

[Saitama]

Homework Statement

which functional group is present in aspatame molecule?

Homework Equations

The Attempt at a Solution

why the carbonyl group COO- is not present in the diagram? I can find it in the diagram

-COO- is not carbonyl, its for ester. Carbonyl is simply -CO-.

 

[desmond iking]

-COO- is not carbonyl, its for ester. Carbonyl is simply -CO-.

yes , i noted . but can you try to answer my question please? thanks... the C0- grouo is present in the molecule

 

[Saitama]

yes , i noted . but can you try to answer my question please? thanks... the C0- grouo is present in the molecule

No, it is not present. Rather, you have -CONH- which is an amide and -COO-, which is an ester.

 

[Borek]

It is always a part of other functional group, not a functional group alone (like in acetone).

But to be honest I don't like the question - carbonyl is so characteristic it retains some of its properties even when it is a part of the larger functional group, so I agree the way question is constructed can be confusing and misleading.

 

[Ygggdrasil]

The question would have been more clear is they said ketone rather than carbonyl. I would say the C=O group in amides, esters, and carboxylic acids all count as carbonyls, but they don't count as ketones.

 

[desmond iking]

No, it is not present. Rather, you have -CONH- which is an amide and -COO-, which is an ester.

but, the general sturucture of amide is as follow, am i right? but i can't find this continuous in the diagram? can you be more specific , helping me by circling out the part so that i can see it more clearly?

 

[Borek]

What you have drawn is not an amide, it is an alpha aminoacid.

Amide needs a direct connection of carbonyl to nitrogen.