Halogen carrier
What Halogen carrier means in Chemistry A-Level, as defined for AQA, OCR.
Definitions of Halogen carrier
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Reference: OCR
A Lewis acid catalyst such as aluminium chloride or iron(III) chloride that accepts a chloride ion from the haloalkane or acyl chloride to generate a reactive electrophile.
A Lewis acid such as AlCl₃ that polarises the C–Cl bond to generate the electrophile and later removes Cl⁻.
The role of anhydrous aluminium chloride, AlCl₃, in the reaction.
Topics that use Halogen carrier
- Electrophilic substitution (A-level only) (AQA A-Level)
- Aromatic compounds (OCR A-Level)
- Carbon–carbon bond formation (OCR A-Level)
Related terms
- Friedel–Crafts acylation
- Acid hydrolysis of nitriles
- Activating and 2,4-directing effect of the –OH group
- acylium ion
- Bond lengths in benzene
- Carbon chain extension and carbon counting
- Carbon–carbon bond formation
- Carbon–carbon bond formation in synthesis
Using Halogen carrier in the exam
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