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O-xylene is a benzene ring with two methyl groups in the ortho-positions. Methyl groups on a benzene ring act as o,p-directors, which means that they direct electrophiles to the carbon directly across or directly beside the existing methyl group.
Friedel-crafts acylation creates the electrophile using a Lewis acid catalyst, however because there are two methyl groups side by side on o-xylene, the electrophilic addition is not as straightforward as described above. The two methyl groups direct the electrophile to different carbons, creating a mixture of products.
As a result, there will be two products formed:
One product will be a benzene ring with the electrophile and two methyl groups in a 1,2,3 orientation.
The second product will be a benzene ring with the electrophile and two methyl groups in a 1,3,4 orientation (respectively).
It is my understanding that the second product will be most predominantly formed, because it has the least steric hindrance (it is less crowded).
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What is friedal craft reaction?
when alkyle helide or acyle helide react with benzene ring and there is elemanition of h ATM such reaction called friedal craft reaction ............... there is 2 types 1...... friedal craft Alkylation 2...... friedal craft Acylation
What is the reaction mechanism for the synthesis of formyl ferrocene with triethyl orthoformate and AlCl3?
it's a friedel-craft acylation with the triethyl orthoformate being a formyl synthon. the AlCl3 is a Lewis acid, it coordinates the ethoxy group, which is kicked off by the adjacent oxygen. The ferrocene then is the nucleophile and the rest of the reaction is a standard electrophilic aromatic substitution leaving the formyl oxonium, which is quenched to the formyl on work-up. i think that's how it goes anyway, i haven't read the paper.
Why Nitrobenzene is used as a solvent in Friedel craft reaction?
1) it has high dielectric constant 2) Also AlCl3 can interact with the nitrobenzne to form complex C6H5NO2.AlCl3 which is soluble in excess nitrobenzene hence a good solvent....
Why aniline doesn't under go friedal craft reaction?
Aniline doesnt undergo friedel craft rxn because the reagent AlCl3,(the lewis acid which is used as a catalyst in friedel crafts reaction).being e- deficient acts as lewis base and attacks on the lone pair of nitrogen present in aniline & aniline forms a salt with Aluminium chloride. Due to this nitrogen atom of aniline acquires a positive charge and hence acts as a strong deactivating group and thus doesn 't allow the reaction to take place.In other cases ther is no such reaction.
Where could someone purchase craft storage boxes?
Craft storage boxes can be purchased from Amazon. Craft storage boxes can also be purchased from the UK website, Plasticboxshop. CreateandCraft also sells craft storage boxes.
What is friedal craft reaction?
when alkyle helide or acyle helide react with benzene ring and there is elemanition of h ATM such reaction called friedal craft reaction ............... there is 2 types 1...... friedal craft Alkylation 2...... friedal craft Acylation
In Freidal craft reactions what is the role of Lewis acids?
Lewis acids help in the generation of electrophiles in Friedel Crafts reactions.
What is the reaction mechanism for the synthesis of formyl ferrocene with triethyl orthoformate and AlCl3?
it's a friedel-craft acylation with the triethyl orthoformate being a formyl synthon. the AlCl3 is a Lewis acid, it coordinates the ethoxy group, which is kicked off by the adjacent oxygen. The ferrocene then is the nucleophile and the rest of the reaction is a standard electrophilic aromatic substitution leaving the formyl oxonium, which is quenched to the formyl on work-up. i think that's how it goes anyway, i haven't read the paper.
What happens to proctor?
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Why Nitrobenzene is used as a solvent in Friedel craft reaction?
1) it has high dielectric constant 2) Also AlCl3 can interact with the nitrobenzne to form complex C6H5NO2.AlCl3 which is soluble in excess nitrobenzene hence a good solvent....
Why aniline doesn't under go friedal craft reaction?
Aniline doesnt undergo friedel craft rxn because the reagent AlCl3,(the lewis acid which is used as a catalyst in friedel crafts reaction).being e- deficient acts as lewis base and attacks on the lone pair of nitrogen present in aniline & aniline forms a salt with Aluminium chloride. Due to this nitrogen atom of aniline acquires a positive charge and hence acts as a strong deactivating group and thus doesn 't allow the reaction to take place.In other cases ther is no such reaction.
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Walter Albert Lawrance has written: 'Friedel and Craft's reaction-some substituted phthalic anhydrides with toluene and aluminium chloride' -- subject(s): Chemical reactions 'The reaction of substituted phthalic anhydrides with aluminum chloride and benzene' -- subject(s): Benzene, Aluminum chloride, Phthalic anhydride
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