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Posted by on Wednesday, May 28, 2008 at 8:54pm.

The question asks to determine the IUPAC name of a compound based on a diagram.

I would choose the name:

(Z)-5-ethyl-2,4,6-trimethyl-2,4-octadiene

However, this doesn't match any of the given choices. They are:

a. (Z,Z)-5-Ethyl-2,4,6-trimethyloctadiene
b. (E)-5-Ethyl-2,4,6-trimethyloctanadiene
c. (Z)-5-Ethyl-2,4,6-trimethyloctanadiene
d. (Z,Z)-5-sec-Butyl-2,4-dimethylheptanadiene

It looks like the closest answer is C. But:

What is the "na" in "nadiene"?
Why aren't the positions of these two double bonds specified?

  • Chemistry - , Wednesday, May 28, 2008 at 8:55pm

    (I think my tabs broke that post. retrying...)

    The question asks to determine the IUPAC name of a compound based on a diagram.

    I would choose the name:

    (Z)-5-ethyl-2,4,6-trimethyl-2,4-octadiene

    However, this doesn't match any of the given choices. They are:

    a.(Z,Z)-5-Ethyl-2,4,6-trimethyloctadiene
    b.(E)-5-Ethyl-2,4,6-trimethyloctanadiene
    c.(Z)-5-Ethyl-2,4,6-trimethyloctanadiene
    d.(Z,Z)-5-sec-Butyl-2,4-dimethylheptanadiene

    It looks like the closest answer is C. But:

    What is the "na" in "nadiene"?
    Why aren't the positions of these two double bonds specified?

  • Curious Maria - , Wednesday, May 28, 2008 at 9:04pm

    could help but i can't find that diagram ur talking about

  • Chemistry - , Thursday, May 29, 2008 at 12:18am

    I was hoping you could envision the molecule given my estimated IUPAC name of:

    (Z)-5-ethyl-2,4,6-trimethyl-2,4-octadiene

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