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aldehydes and ketones Watch

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    Why is it easier to oxidise primary alcohols to aldehydes than it is to oxidise secondary alcohols to ketones?

    I know it'll be something to do with the fact primary alcohols only have one R group and secondary alcohols have two, but i'm not sure what effect it has.

    thanks
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    (Original post by gemma1234)
    Why is it easier to oxidise primary alcohols to aldehydes than it is to oxidise secondary alcohols to ketones?

    I know it'll be something to do with the fact primary alcohols only have one R group and secondary alcohols have two, but i'm not sure what effect it has.

    thanks
    Aldehydes tend to be more reactive than ketones as the two alkyl groups either side of the carbonyl in ketones induce electrons towards the carbon of the carbonyl reducing the polarity.

    Aldehydes have only one alkyl group attached to the carbonyl and hence greater polarity.
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    The extra bulk of another R probably makes it harder to attack.
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    Hey! i believe it would be that primary alcohols only have one R group which is electron donating hence making the Carbon attached to the OH less positive whereas secondary alcohols have two R groups making the Carbon less positive... im not 100% sure but that is usually the explanation used for R groups...
 
 
 
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