Elimination reactions again :D Watch

Stranded
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#1
Report Thread starter 12 years ago
#1
Hi again,

I'm doing a question on elimination reactions of haloalkanes from the NAS Edexcel book. Just want to make sure I'm on the right track.
The question: "3-Bromo-3methylhexane rapidly undergoes elimination when boiled with ethanolic potassium hydroxide. Write the structures of the FIVE alkenes which might be formed, & name them."

OK so the alkenes that I got are:
>3-methyl hex-3-ene
>3 methyl hex-2-ene

Now you could get geometric isomers of the above two which gives a further four possible products:

>Cis 3-methyl hex-3-ene
>Trans 3-methyl hex-3-ene
>Cis 3-methyl hex-2-ene
>Trans 3-methly hex-2-ene

Suming it all up, chances are that you get 6 possible products. Am I right? Much appreciated
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charco
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Report 12 years ago
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No, you're not quite right.

possible products:

3 methyl hex-2-ene (2 geometric isomers)
2 ethyl pent-1-ene
3 methyl hex-3-ene (2 geometric isomers)

2 ethyl pent-1-ene does not have geometric isomers

making five in total
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Stranded
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Hmm...I have to look into that :hmmmm:
Anyways thank you so much Charco for your help! As usual
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