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    A compound has a molecular formula C4H7NO. Draw an isomer of that compound which shows geometrical isomerism and is formed by the reaction between ammonia and an acyl chloride.

    So an amide functional group is

    So the rest of the compound would have the molecular formula C3H5 right?
    That doesn't work though.

    With three carbons added on to the functional group, there would need to be 7 hydrogens?

    :lolwut:
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    Would it work with an alkene group in there?
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    I was thinking that, but can you do that? Do products of an acyl chloride and ammonia sometimes have double bonds...?
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    Oh no wait, you know the R stands for the C3H5 group? It should work that way I think?
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    I just drew it out and it works that way...
    ....H H H
    ....| | |
    H-C-C-C=O
    ....| | |
    ....H H NH2
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    No, I drew it wrong.

    It is:


    There should be four carbons in total.

    :confused:
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    (Original post by emmielociraptor)
    I just drew it out and it works that way...
    ....H H H
    ....| | |
    H-C-C-C=O
    ....| | |
    ....H H NH2
    Needs 4 carbons
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    Ahhh ok...I guess it would have to be a double bond then but the question does specify geometrical isomerism...
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    Lol damn this is annoying me! It's been too long since I did chemistry.

    Wikipedia offers this: http://en.wikipedia.org/wiki/2-Pyrrolidone
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    Hmm, I think I'll just go with a double bond :p: Thanks
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    (Original post by Get Cape.Wear Cape.Fly.)
    Hmm, I think I'll just go with a double bond :p: Thanks
    It says geometrical isomer, so it's probably cis-trans isomerism and a C=C molecule is probably correct.
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    I found an AQA mark scheme that would seem to insinuate a double bond

    You're welcome :tongue:
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    (Original post by Get Cape.Wear Cape.Fly.)
    Hmm, I think I'll just go with a double bond :p: Thanks
    I think its supposed to contain an alkene functional group, hence geometrical isomerism about CC doubkle bond
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    Hate Chemistry Unit 4 with a passion. :rant:
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    CH3-CH=CH-CONH2 :yep:
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    Well for one an acyl chloride does not contain an NH2 group, it has a Cl atom in place of the NH2 group.
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    (Original post by Dan1990)
    Well for one an acyl chloride does not contain an NH2 group, it has a Cl atom in place of the NH2 group.
    Yes but the compound is the product of a reaction between an acyl chloride and NH3 so:

    RCOCl + NH3 ---> RCONH2 + HCl

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    (Original post by Dan1990)
    Well for one an acyl chloride does not contain an NH2 group, it has a Cl atom in place of the NH2 group.
    I meant amide.
 
 
 
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