Chemistry A-Level
Carbon chain extension and carbon counting
What Carbon chain extension and carbon counting means in Chemistry A-Level, as defined for OCR.
Definition of Carbon chain extension and carbon counting
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Reference: OCR
The nitrile route adds exactly one carbon, whereas Friedel–Crafts adds the whole acyl group, so carbons must be counted carefully.
Topics that use Carbon chain extension and carbon counting
- Carbon–carbon bond formation (OCR A-Level)
Related terms
- Acid hydrolysis of nitriles
- Carbon–carbon bond formation
- Carboxylic acid formation
- Chain lengthening in synthesis
- Friedel–Crafts acylation
- Friedel–Crafts reactions
- Halogen carrier
- Hydrolysis to carboxylic acids
Using Carbon chain extension and carbon counting in the exam
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