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    ...having been doing revision for other subjects, I now have about 1 day to relearn all organic chemistry from unit 2, 4, 5, mechanisms, organic structure determination etc...

    I think organic chemistry at A-level is a waste of time. They should have a separate module for people who wish to read chemistry at university!
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    (Original post by Mathemagician)
    I think organic chemistry at A-level is a waste of time.
    In what way?
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    What exam board you doing? I dont think the organic chem is that bad, just remembering stuff without much understanding.
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    I prefer organic chem to all the other rubbish...I mean who cares about what colour copper is in an aqueous solution?!
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    (Original post by sokas)
    I mean who cares about what colour copper is in an aqueous solution?!
    I must admit that there seems to be a strange emphasis on that kind of thing at A-level, most chemists are baffled as to why that is taught in such a way.
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    Personally i think that organic is all the most logical and useful stuff!!
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    organic i alrite...i'd prefer it to have been in one big mutha of a paper than dotted around ova 3 units (edexcel)...but it needs concetration...
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    (Original post by Bekaboo)
    Personally i think that organic is all the most logical and useful stuff!!
    Definately, i <3 organic chem
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    Let's start revise instead of wondering it's useful or not ...
    I start first:
    -Write down all the methods you have studied to produce carboxylic acid (1 step only)
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    oxidise an aldehyde- reflux with acidified potassium dichromate (IV)

    reflux an ester with aqueous acid or alkali


    How would you make an acycl chloride from the corresponding carboxylic acid?
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    Hydrolysis of ester
    Oxidation of alcohol
    Hydrolysis of nitrile
    Acyl chlroide + water

    Have I missed any?
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    More methods to produce carboxylic acid
    - Oxidise alcohols in potassium manganate(VII) or heat under reflux with K2Cr2O7
    - Acyl chloride + H2O
    - Heat under reflux nitrile or amide in acid/alkali
    - Warm amide in acid/alkali

    Make acyl chlorides:
    - Carboxylic acid + PCl5
    ( I think only method for that ??)
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    what board do you do?
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    (Original post by kohlstream)
    what board do you do?
    edexcel
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    phew!
    'Warm amide in acid/alkali' hadn't seen that before
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    www.studyspot.moonfruit.com - go to the organic chemistry bit in there, ive prepared a 'map' of all of the unit 4 organic reactions and pathways.
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    (Original post by BCHL85)
    Make acyl chlorides:
    - Carboxylic acid + PCl5
    ( I think only method for that ??)
    Carboxylic acid and SOCl2
    Ester hydrolysed with SOCl2 as well
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    (Original post by kohlstream)
    phew!
    'Warm amide in acid/alkali' hadn't seen that before
    I do edexcel but havent seen it lol. Better revisit bit of organic tonight
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    and use grignard reagent + CO2 -> carboxylic as well.
    So what about the methods to make amines?
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    I'll do phenylamine:

    1)Benzene to nitro benzene with conc HNO3 and conc H2SO4 at less than 55C
    2)Nitro benzene to phenylamine using Sn, conc HCl, reflux
 
 
 
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