Further Synthetic Routes (OCR A-Level Chemistry A): Flashcards
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Reagent for chain extension via nitrile formation
Reagent for chain extension via nitrile formation
in ethanol
Oxidise 1° alcohol to carboxylic acid: reagent + conditions
Oxidise 1° alcohol to carboxylic acid: reagent + conditions
, reflux
Convert carboxylic acid to acyl chloride: reagent
Convert carboxylic acid to acyl chloride: reagent
(thionyl chloride)
Reduce nitrobenzene to aniline: reagent
Reduce nitrobenzene to aniline: reagent
and conc.
Aniline + : catalyst needed?
Aniline + : catalyst needed?
No catalyst needed (activated ring)
Phenol + at room temp: product
Phenol + at room temp: product
2,4,6-tribromophenol (white ppt)
Best approach for planning synthesis routes
Best approach for planning synthesis routes
Retrosynthetic analysis (work backwards)
group directing effect on benzene
group directing effect on benzene
Meta-directing (positions 3,5)
and groups: directing effect
and groups: directing effect
2,4-directing
Nitrile + : product (chain extended)
Nitrile + : product (chain extended)
Carboxylic acid