cherry7girl
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Draw the structure of a primary amine with four carbon atoms that cannot be formed from a nitrile.

i dont know how to work this out
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Ensoetre
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I don’t want to give you the answer straight away so.....what have you come up with so far & I’ll try to help!
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cherry7girl
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(Original post by Ensoetre)
I don’t want to give you the answer straight away so.....what have you come up with so far & I’ll try to help!
basically i understand that nitriles can be reduced to primary amines with nickel and hydrogen catalyst but i have no idea when this wouldn't be possible, normally i can work it out but this has me clueless
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Ensoetre
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(Original post by onedance1)
basically i understand that nitriles can be reduced to primary amines with nickel and hydrogen catalyst but i have no idea when this wouldn't be possible, normally i can work it out but this has me clueless
It’s quite difficult to explain without a diagram but it’s simple! Basically you need to have a primary amine that contains a methyl group on C1 ( C-NH2 ). These can’t be formed from a nitrile because CN is reduced to ( RCH2NH2 ). If you have a methyl on the C1 in the primary amine it can’t be formed from a nitrile. Try to draw out what I’m saying it will make sense.
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Ensoetre
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Work backwards. Draw the amine first & then try to draw the nitrile and you’ll see you can’t do it
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