Post by: newbie1 on May 28, 2016, 03:25:59 AM
I need help with the nomenclature of a certain ester.
There is C=OOCCC on both sides of the molecule and there are five carbons in between.
How do I name this thing? Or could someone please direct me to where I can find out?
I know how to name esters with only one C=OOR side.
Thank you
Post by: sjb on May 28, 2016, 04:02:44 AM
Like this? One way would be to name the diol, then the acyl groups
Post by: newbie1 on May 28, 2016, 04:11:55 AM
Post by: newbie1 on May 28, 2016, 04:47:23 AM
Like this? One way would be to name the diol, then the acyl groups
Hi SJB,
I just noticed the O's are on the other side, going outwards.
I searched the groups you suggested. I tried a few ways to name the molecule, 1,5-propylpentanoatediol, propylpentanoate-1,5-diol but I don't think they are right. Any suggestions? Am I on the right track?
Post by: critzz on May 28, 2016, 09:26:43 AM
I just noticed the O's are on the other side, going outwards.
No you can't interchange the O-side and the C-side of the alkyl alkanoate.
In methyl propanate for example:
Methyl stands for
![[CH3]](https://www.chemicalforums.com/SMILES/fbd4339436b34ae20105.png)
and propanate for ![CCC([O-])=O](https://www.chemicalforums.com/SMILES/769eb72118e3070da688.png)
and combined they form methyl propanoate 
.How would you name
and how would you name ![[CH2]CCC[CH2]](https://www.chemicalforums.com/SMILES/1a509cef67463090b0f3.png)
If you know how to name those two, I think you can also name your compound.
Post by: newbie1 on May 28, 2016, 07:26:11 PM
Thank you for trying to help. I know how to name the compounds you have for the pictures for above.
What I wanted to know was how do you name an ester that has two esters on either side of the compound, where in the name you put the alcohol and the acid. I wish I knew how to post a picture so you can see what I am looking at.
Thank you again. I will ask my teacher when I see him next time.
Post by: Borek on May 29, 2016, 02:37:19 AM
I wish I knew how to post a picture so you can see what I am looking at.
Well, you used SMILES (or something similar) in your post, and that's exactly how you post a picture of a molecule here: http://www.chemicalforums.com/index.php?topic=59314.0
Post by: critzz on May 29, 2016, 05:06:21 AM
I know how to name the compounds you have for the pictures for above.
Oh, I assumed it was the structure sjb posted earlier.
Post by: sjb on May 29, 2016, 12:46:18 PM
I'd try naming the acid first.
Hi SJB,
I just noticed the O's are on the other side, going outwards.
I searched the groups you suggested. I tried a few ways to name the molecule, 1,5-propylpentanoatediol, propylpentanoate-1,5-diol but I don't think they are right. Any suggestions? Am I on the right track?