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Homework Help: Functional Groups in Alantolactone

  1. Nov 2, 2012 #1
    1. The problem statement, all variables and given/known data
    Given the structure of Alantolactone, find two functional groups.

    2. The attempt at a solution
    This was a question that was on my exam recently. I answered Ester and Ether, however Ether was marked incorrect. Instead, only the answers Ester and Alkene were accepted.

    How is Ether incorrect if R-O-R' found in the structure?

    Attached Files:

  2. jcsd
  3. Nov 3, 2012 #2


    User Avatar

    Staff: Mentor

    -O- is accompanied by carbonyl, so it is no longer an ether.

    It is like calling a carboxylic acid an alcohol, just because carboxylic group contains -OH.
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