(unfinished) Chemistry A2 complete mindmap
- Created by: Emily
- Created on: 21-05-14 18:10
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- Chemistry A2 OCR
- F325
- F324
- Benzene Rings
- Benzene
- Delocalised pi electron system is formed by sideways overlap of p-orbitals
- Each carbon atom donates a pair of electrons
- Rings of high electron density above and below the plane of carbon atoms
- Comparing relative electron densities and reactivity
- Benzene Rings
- Benzene
- Delocalised pi electron system is formed by sideways overlap of p-orbitals
- Each carbon atom donates a pair of electrons
- Rings of high electron density above and below the plane of carbon atoms
- Comparing relative electron densities and reactivity
- Phenol
- Phenol - lone pair of electrons on oxygen atom contributed to benzene ring, giving it a higher electron density, which allows it to polarise Br2
- Behaves as weak acid
- Proton can be donated to amines, carbonates, and bases
- Reacts in typical acid-base reactions, forms phenoxide salts
- Is reagent in coupling reaction
- rects with bromine at RTP to form 2,4,6-tribromophenol
- Observations = orange colour disappears, white precipitate forms
- Benzene - electrons delocalised
- Cyclohexane - electrons are localised around pi bond, polarises Br2 molecule and reacts by electrophilic addition
- Phenol
- Nitration of benzene
- Requires HNO3, H2SO4 catalyst and 55 degrees temp
- H2SO4 + HNO3 -> HSO4- + H2O + NO2+
- Generates electrophile
- Halogenation of benzene
- Delocalised pi electron system is formed by sideways overlap of p-orbitals
- Phenol
- Phenol - lone pair of electrons on oxygen atom contributed to benzene ring, giving it a higher electron density, which allows it to polarise Br2
- Behaves as weak acid
- Proton can be donated to amines, carbonates, and bases
- Reacts in typical acid-base reactions, forms phenoxide salts
- Is reagent in coupling reaction
- rects with bromine at RTP to form 2,4,6-tribromophenol
- Observations = orange colour disappears, white precipitate forms
- Benzene
- Benzene - electrons delocalised
- Cyclohexane - electrons are localised around pi bond, polarises Br2 molecule and reacts by electrophilic addition
- Benzene Rings
- Nitration of benzene
- Requires HNO3, H2SO4 catalyst and 55 degrees temp
- H2SO4 + HNO3 -> HSO4- + H2O + NO2+
- Generates electrophile
- Halogenation of benzene
- Delocalised pi electron system is formed by sideways overlap of p-orbitals
- Benzene
- Carbonyl Compounds
- Analysis
- Polymers
- Amines
- Amino acids
- Polymers
- Contains a carboxylic acid group
- Contains an amino group
- Exists as a zwitterion at it's isoelectric point
- COOH donates proton to NH2 group
- Nitrogen atom on amino group has lone pair which can be donated to an acid
- Behaves as base
- Behaves as base
- Amino acids
- Benzene Rings
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