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Author Topic: How to cycloalkene to methyl cycloalkene?  (Read 2828 times)

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dvirshavit

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How to cycloalkene to methyl cycloalkene?
« on: June 24, 2018, 09:34:57 AM »

I thought about reacting the pie bond with  CH3Br to get Ch3 and Br as groups of the Cyclohexene and after that eliminate the Br from the ring with E2 or E1 method.

Could that work?
do you have a better way? 

Thanks!!!

« Last Edit: June 24, 2018, 09:49:16 AM by dvirshavit »
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billnotgatez

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Re: How to cycloalkene to methyl cycloalkene?
« Reply #1 on: June 24, 2018, 09:40:24 AM »

You have to show your attempts or thoughts at solving the question to receive help.
This is a forum policy.
Click on the link near the top center of the forum page.
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http://www.chemicalforums.com/index.php?topic=65859.0
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Babcock_Hall

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Re: How to cycloalkene to methyl cycloalkene?
« Reply #2 on: June 24, 2018, 09:46:24 AM »

My advice is to work backwards from the product and to use reactions that you have learned in class.
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dvirshavit

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Re: How to cycloalkene to methyl cycloalkene?
« Reply #3 on: June 24, 2018, 09:50:47 AM »

You have to show your attempts or thoughts at solving the question to receive help.
This is a forum policy.
Click on the link near the top center of the forum page.
Forum Rules: Read This Before Posting.
http://www.chemicalforums.com/index.php?topic=65859.0
sorry - It's my first time here
 :D
I modified.
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dvirshavit

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Re: How to cycloalkene to methyl cycloalkene?
« Reply #4 on: June 24, 2018, 09:52:16 AM »

My advice is to work backwards from the product and to use reactions that you have learned in class.
Thanks for the advice. I tried that and that's what I got (I added in the topic). what do you think about that?
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Babcock_Hall

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Re: How to cycloalkene to methyl cycloalkene?
« Reply #5 on: June 24, 2018, 10:14:42 AM »

I don't recall ever seeing a pi bond act as a nucleophile against CH3Br.
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Enthalpy

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Re: How to cycloalkene to methyl cycloalkene?
« Reply #6 on: June 25, 2018, 01:28:19 AM »

R-X don't add on alkenes like H-X do. It needs many haloatoms on R, and some conditions on the alkene
https://en.wikipedia.org/wiki/Kharasch_addition
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Babcock_Hall

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Re: How to cycloalkene to methyl cycloalkene?
« Reply #7 on: June 25, 2018, 03:17:50 AM »

@OP, What reactions have you learned that form carbon-carbon bonds?
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dvirshavit

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Re: How to cycloalkene to methyl cycloalkene?
« Reply #8 on: June 26, 2018, 01:22:40 AM »

R-X don't add on alkenes like H-X do. It needs many haloatoms on R, and some conditions on the alkene
https://en.wikipedia.org/wiki/Kharasch_addition
Thank you
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dvirshavit

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Re: How to cycloalkene to methyl cycloalkene?
« Reply #9 on: June 26, 2018, 01:24:10 AM »

@OP, What reactions have you learned that form carbon-carbon bonds?
Thanks for the help. I've just been told by the teacher that we didn't learn the needed reaction and that I will learn it next year.
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