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Topic: synthetic steps (2 problems)  (Read 3249 times)

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Offline sector9tahiti

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synthetic steps (2 problems)
« on: April 23, 2009, 09:07:34 PM »
1)  what series of synthetic steps could be used to carry out the transformation of 1-butene to pentionitrile? (CH3CH2CH2CH2CN)


2) What series of synthetic steps could be used to carry out the transformation of cyclohexane to 1-methyl-cyclohex-1-ene
« Last Edit: April 23, 2009, 09:18:41 PM by sector9tahiti »

Offline macman104

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Re: synthetic steps (2 problems)
« Reply #1 on: April 23, 2009, 09:47:52 PM »
Do you have any thoughts?

1)  What kind of methods do you know for creating a CN?  Can you propose a starting structure (anything you want) that you can make the product from with one step (so, this will end up being the last step in your steps)?
2)  What kind of methods do you know for creating a C=C bond?  Same question as above also, one step from any starting material to your final product.

Offline sector9tahiti

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Re: synthetic steps (2 problems)
« Reply #2 on: April 23, 2009, 09:54:56 PM »
yeah i have no idea how to get a CN in there i looked all over my book and i couldnt find it.. but i thought you might use H2 to get rid of the double bond.

2) i thought of using Br2, hv to remove two H and make a double bond but then i didnt know how to get in the methyl

Offline macman104

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Re: synthetic steps (2 problems)
« Reply #3 on: April 24, 2009, 12:44:58 AM »
yeah i have no idea how to get a CN in there i looked all over my book and i couldnt find it.. but i thought you might use H2 to get rid of the double bond.
http://www.chemguide.co.uk/organicprops/nitriles/preparation.html
Quote
2) i thought of using Br2, hv to remove two H and make a double bond but then i didnt know how to get in the methyl
Hmm, interesting, so now you would have a molecule with a bromine, and you would also need to add the methyl, that might not be easy.  Do you know any other ways to form a double bond, what other functional groups can be converted into leaving groups and dehydrate (*wink wink*)?

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