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Topic: Alkene nomenclature  (Read 4763 times)

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FictionDurden

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Alkene nomenclature
« on: October 09, 2004, 05:44:43 PM »
I am having trouble with a nomenclature for alkenes problem. Please open the picture attached. If that doesn't work, here is a description:

First, there is a pentane ring (5 carbon ring) and a bond attached to the carbon which is next to the carbon at the top of the ring (the pointy part). That bond is CH2-CH2-C ( with a methyl group attached at the top) double bonded to C with two methyl groups.


Okay, my guess is 6-cyclopentyl-2,3-dimethyl-2-hexene. Please *delete me* Thanks.

« Last Edit: October 09, 2004, 05:46:52 PM by FictionDurden »

Offline Donaldson Tan

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Re:Alkene nomenclature
« Reply #1 on: October 09, 2004, 06:19:53 PM »
4-cyclopentyl-butene, I think
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FictionDurden

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Re:Alkene nomenclature
« Reply #2 on: October 09, 2004, 11:59:52 PM »
4-cyclopentyl-butene, I think

How did you get that? If it's butene, wouldn't there be 2 methyl groups as substituents?

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Re:Alkene nomenclature
« Reply #3 on: October 10, 2004, 01:51:26 PM »
ChemDraw says it's (3,4-dimethylpent-3-enyl)cyclopentane.  That might not be the best answer though.  It depends on whether or not carbocyclics are higher naming priority than alkenes.

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