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Terminal alkyne

Discussion in 'DAT Discussions' started by nornton, Aug 13, 2015.

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  1. nornton

    nornton
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    When an internal alkyne is reacted with KmnO4,OH/H+ 2 carboxylic acids form correct? According to Kaplan this forms a carboxylic acid and CO2. Can anyone confirm which is correct?
    Thanks!
    Edit: Title should be internal alkyne
     
    #1 nornton, Aug 13, 2015
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  2. orgoman22

    orgoman22 DAT DESTROYER
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    Internal alkynes give carboxy acids.....only when the double bond is on the VERY END does CO2 form. . Let us do an example.....If we treat 2-pentyne with hot KMn04, we get acetic and propanoic acid. If we treat 1-pentyne, we get butanoic acid and CO2.

    Hope this drives it home !

    Dr. Romano
     
    #2 orgoman22, Aug 13, 2015
    dentalgirl101 and nornton like this.
  3. nornton

    nornton
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    Thank you! that clarified everything
     
    #3 nornton, Aug 13, 2015
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