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    Ok... I have forgotten organic chem

    1) When is Sn with HCl used in organic chem?

    2) What exactly is acylation and alkylation?

    I'm thinking that acylation is formation of an acyl group but what is alkylation?

    and

    3) are acylation and alkylation Friedel-Craft reactions, if not what are Friedel-Crafts reaction (or whatever they are called)

    Grazie :cool:
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    (Original post by Revenged)
    Ok... I have forgotten organic chem

    1) When is Sn with HCl used in organic chem?

    2) What exactly is acylation and alkylation?

    I'm thinking that acylation is formation of an acyl group but what is alkylation?

    and

    3) are acylation and alkylation Friedel-Craft reactions, if not what are Friedel-Crafts reaction (or whatever they are called)

    Grazie :cool:
    1) a nitro group on a benzene ring is converted to an amine group when refluxed with sn and hcl- is important to produce phenylamine, to produce dyes.

    2) alkylation is addition of an alkane to a benzene ring

    3) i honestly cant remember also
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    Sn and conc. HCl are used in making phenylamine from nitrobenzene

    2C6H5NO2 + 12H+ + 18Cl- + 3Sn ----> 2C6H5NH2 + 3SnCl62- + 2H20

    I think, Acylation is substituting an acyl group (eg. CH3CO) into another molecule. Alkylation is substituting an alkyl group (e.g. CH3). Both alkylation and acylation with benzene is friedel-crafts.
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    1:
    - Nitrobenzene reduction to phenylamine.
    - Also, for example, butanonitrile to butylamine.
    2:
    - Acylation substitution of an acyl chloride into the ring using AlCl3 as a catalyst. Cl on this acyl chloride form HCl with H from benzene.
    - Alkylation is substitution of, for example, CH3Cl into a benzene ring to give methyl benzene -essentially just subbing in any alkyl group.
    3:
    - Point 2 covers the F/C reactions.... acylation and alkylation of benzene using a metal halide catalyst are the Friedel Crafts reactions.

    Hope this helps.
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    Cheers every1
 
 
 
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