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Topic: esters  (Read 13129 times)

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Offline xc630

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esters
« on: March 22, 2008, 11:15:58 PM »
Hello I have a question I have researched online but haven't found the answer to:

Two esters with the empirical formula C3H6O2 may be prepared.  Write the structural formulas for these esters and name them.  how would you prepare the two esters in question 9. 

This is a prelab question and my gen chem class hasn't covered anything like this.  Thanks!


Offline Sev

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Re: esters
« Reply #1 on: March 23, 2008, 12:24:53 AM »
CH3C(O)OCH3, HC(O)OCH2CH3

Can you name them now?

Offline xc630

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Re: esters
« Reply #2 on: March 23, 2008, 12:01:35 PM »
i looked online and found ethyl methanoate for the second one but didn't find the first

Offline ARGOS++

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Re: esters
« Reply #3 on: March 23, 2008, 12:26:09 PM »

Dear xc630;

The first one is done from CH3COOH (= Vinegar) and Methanol.
Hint: Vinegar has a chem. Name.

May this be of help to you?


Good Luck!
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Offline Arkcon

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Re: esters
« Reply #4 on: March 23, 2008, 12:28:48 PM »
i looked online and found ethyl methanoate for the second one but didn't find the first

Check your textbook for the general rules for ether oops ester nomenclature, once you know the rules, you'll be able to name them, even if the net is down or unavailable.
« Last Edit: March 23, 2008, 08:06:12 PM by Arkcon »
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline ARGOS++

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Re: esters
« Reply #5 on: March 23, 2008, 12:45:50 PM »

Dear Arkcon;

I thought:  Esters,  - not Ethers.

Good Luck!
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Offline xc630

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Re: esters
« Reply #6 on: March 23, 2008, 01:00:53 PM »
Okay I believe the first one if methyl acetate.  What's the process for knowing it's derived from vinegar and methanol. How would I know what the second one is derived from?

Offline ARGOS++

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Re: esters
« Reply #7 on: March 23, 2008, 01:36:10 PM »
Dear xc630;

Exact! , - or analog to your second: Methyl-Ethanoate.

Do the same as I:  Translate CH(O)O-R1 into CH(O)O- (= R'-COO- = Carbon Acid Group) and the required Alcohol, in your case: CH3-CH2-OH, the Ethanol.
That’s all.


Good Luck!
                    ARGOS++


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