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What are the esters formed from fumaric acid and propanol ?

  1. Nov 22, 2015 #1
    1. The problem statement, all variables and given/known data
    what are the esters formed by:
    -fumaricacid and propanol?
    - succinic acid and butanol
    -citric acid and methanol
    and how does each one smell

    2. Relevant equations
    none
    3. The attempt at a solution
    I have drawn out each of the structural diagrams but i couldnt draw the esters. My attemp at naming them are propyl fumarate ,butyl succinate, and methyl citrate. I am guessing they have a fruity smell.
     
  2. jcsd
  3. Nov 23, 2015 #2

    Borek

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    Staff: Mentor

    This is a bit tricky. Names you listed so far are not off, but from the way problem is worded it is not clear whether the esterification stops after one carboxyl group reacted - and all three acids have more than one carboxyl acid group.
     
  4. Nov 23, 2015 #3

    epenguin

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    Homework Helper
    Gold Member

    The odours are possibly of some interest, worthy to be aware of. You can easily find articles and lists via Google e.g. here https://en.m.wikipedia.org/wiki/Ester - there is a big culture and for that matter commerce around odours of esters.
    To experience if possible. But to have to have to conscentiously learn them from a book! :rolleyes:

    When a chemical substance is said to have a given odour it might be due to a minor contaminant, but all these esters are easily purified and it's OK.
     
  5. Nov 23, 2015 #4
    the answers were difumaric acid, disuccini acid and trimethyl citrate. Thanks for your help everyone !
     
  6. Nov 23, 2015 #5

    Borek

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    Staff: Mentor

    And how it is an ester?
     
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