Oxidising Alcohols Question HELP PLEASE

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LordBanter
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Help me please
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Pigster
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What do you think happens?
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madting247
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(Original post by Pigster)
What do you think happens?
ur a great help m8 looool.

srsly what do u think happens
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LordBanter
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(Original post by Pigster)
What do you think happens?
Top Left - Primary alcohol oxidised to an aldehyde then to a carboxylic acid. Just struggling to put it into context.
Is this even remotely correct? Would the answer be the last part Image
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Pigster
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You're right... butan-1-ol is oxidised to butanal then to butanoic acid.

If you distil it as you react it, you can separate the butanal. If you reflux it, you will convert it to the acid. Do you understand what goes on in distil and reflux?

OCR A like you to show the oxidation to the acid in one step, i.e. CH3CH2CH2CH2OH + 2[O] -> CH3CH2CH2COOH + H2O
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TechRaid3r
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(Original post by LordBanter)
Top Left - Primary alcohol oxidised to an aldehyde then to a carboxylic acid. Just struggling to put it into context.
Is this even remotely correct? Would the answer be the last part Image
Under reflux it oxidises twice to a carboxylic acid, with distillation it just oxidises to an aldehyde.
When you react the alcohol with a carboxylic acid it forms an ester by nucleophilic addition elimination.
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LordBanter
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(Original post by Pigster)
You're right... butan-1-ol is oxidised to butanal then to butanoic acid.If you distil it as you react it, you can separate the butanal. If you reflux it, you will convert it to the acid. Do you understand what goes on in distil and reflux?OCR A like you to show the oxidation to the acid in one step, i.e. CH3CH2CH2CH2OH + 2[O] -> CH3CH2CH2COOH + H2O
Okay I understand that reflux it will convert it to acid and distilling it will separate it. So the bottom left is CH3CH2CHCH2, is that the first equation i posted? the H2O is removed?
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Jasonpt
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Top left is CH3CH2COOH, top right is but-1ene,

bottom left is CH3CH2CH2COH , bottom right butyl ethanoate
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LordBanter
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(Original post by Jasonpt)
Top left is CH3CH2COOH, top right is but-1ene,

bottom left is CH3CH2CH2COH , bottom right butyl ethanoate
why is the bottom left CH3CH2CH2CHO? http://i.picresize.com/EDEC is that why?
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Infraspecies
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(Original post by LordBanter)
why is the bottom left CH3CH2CH2CHO? http://i.picresize.com/EDEC is that why?
Yes. When you distill it, it prevents the complete oxidation to the carboxylic acid.
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Jasonpt
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(Original post by LordBanter)
why is the bottom left CH3CH2CH2CHO? http://i.picresize.com/EDEC is that why?
It is oxidised to an aldehyde because it is distilled rather than refluxed. Reflux is used to make c.acids because the primary alcohol can be fully oxidised.
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