Ketone structure #2.46

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Isha Bagga 3J
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Joined: Fri Sep 26, 2014 2:02 pm

Ketone structure #2.46

Postby Isha Bagga 3J » Thu Mar 05, 2015 8:21 pm

For number 46 in chapter 2, it asks to name all the functional groups in the aspartame molecule. I thought there were some ketones in there, with the double bonded oxygen, but I think I might be confused on what a ketone functional group is because the answer didn't have ketone. If anyone could explain what the double bonded oxygens are there for, I would appreciate it!

Chem_Mod
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Re: Ketone structure #2.46

Postby Chem_Mod » Thu Mar 05, 2015 8:31 pm

There are a wide assortment of different functional groups which all involve carbonyl (C=O). It is only called ketone when both sides of the carbonyl are alkyl groups.

http://www.hyperconjugation.com/video/y ... groups.jpg

Notice that aspartame has 3 carbonyls, but by looking what's near the C=O, you can tell that you have 1) carboxylic acid, 2) amide, 3) ester

martha-1I
Posts: 76
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Re: Ketone structure #2.46

Postby martha-1I » Fri Mar 06, 2015 12:53 pm

I made a video explaining how to distinguish certain c=o structures. The file was too large so I had to upload it to YouTube. The link is below.
http://youtu.be/OfDqHCzB-uc


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