help on organic synthesis (a-level) question?

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starrystudy
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#1
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#1
I would very much appreciate if someone could input how they would answer this OCR chemistry question... i attempted it but got it completely wrong!

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Last edited by starrystudy; 1 year ago
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Biskwit
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#2
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#2
Hi, I will give this a go and let u know once I do : )
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Pyruvic Acid
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#3
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#3
What thought do you have so far?
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Out with Gavin
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#4
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#4
you add a haloalkane to it, then turn that haloalkane into a Cyanide and then reduce it
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Out with Gavin
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#5
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#5
what exam paper is this from?
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starrystudy
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#6
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(Original post by Biskwit)
Hi, I will give this a go and let u know once I do : )
Thank you very much!!
(Original post by Pyruvic Acid)
What thought do you have so far?
honestly I had no idea but, I thought of addition of chloromethane, since the chlorine atom is electronegative and the carbon is slightly electropositive, and so the electron pair of the double bond is donated to the carbon atom, causing the c-cl bond to break via heterolytic fission, and a dative covalent bond set up between one of the carbons of the double bond and the carbon of the haloalkane? but i wasn't sure what to next, also this is completely wrong :lol:
(Original post by Out with Gavin)
you add a haloalkane to it, then turn that haloalkane into a Cyanide and then reduce it
ahh that makes sense, i'll try that! thanks so much
also i'm not really sure, it was on an OCR questions doc my teacher sent me "Chapter 18 exam style questions from kerboodle"
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Biskwit
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#7
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#7
I couldn’t get it sorry, but use this to help Name:  A02681AF-F3F1-4EC9-A85F-04BD2461FDFF.jpg.jpeg
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starrystudy
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#8
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#8
(Original post by Biskwit)
I couldn’t get it sorry, but use this to help Name:  A02681AF-F3F1-4EC9-A85F-04BD2461FDFF.jpg.jpeg
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That's amazing, thank you so much!!
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Biskwit
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#9
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#9
Anytime
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Biskwit
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#10
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#10
Also I think I sent u the wrong thing lol; it’s this Name:  D9B7E9E1-C19A-46F4-8CD8-EBCC7A089B45.jpg.jpeg
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kittykatlover
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#11
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#11
so would the route go 1 4 7 ?
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astrogirl_
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#12
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#12
I would've said add HBr then CN and then reduce with Hydrogen and nickel

(Original post by kittykatlover)
so would the route go 1 4 7 ?
I'm not sure but i thought 2 6 28
Last edited by astrogirl_; 1 year ago
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ThinkingRightNow
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#13
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#13
(Original post by astrogirl_)
I would've said add HBr then CN and then reduce with Hydrogen and nickel


I'm not sure but i thought 2 6 28
yeah I got exactly that, hbr , aqeous kcn + reflux, H2 with Ni catalyst
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