explain why benzene undergoes substitution reactions in preference to addition reactions. 3.3.10.2 Electrophilic substitution Time Learning activity with opportunity to Assessment Learning outcome Resources Learning objective develop skills opportunities Know nitration and 1.0 Chemistry review article: Write equations (including for the January 2012 Unit 4 Students should be able to: acylation reactions weeks formation of electrophiles) and Question 9a Probably the most equations and outline mechanisms for nitration and (QW12.4.09) of aromatic compounds, important reactions in the mechanisms for nitration Friedel-Crafts acylation reactions including the mechanism January 2011 Unit 4 world (Volume 15, edition and Friedel-Crafts given the starting material and Question 6 and usefulness. acylation reactions of 2) products (AO2 - Apply knowledge (QW11.4.06) aromatic compounds. and understanding). (including equations for the June 2010 Unit 4 Students could carry out the formation of electrophiles) Question 8 b) preparation of methyl (QS10.4.08) understand the usefulness by nitration of methyl of nitration and January 2006 Unit 4 benzoate, purification by acylation reactions Question 7 recrystallisation and determination of (QW06.4.07) melting point (AT d - Use laboratory June 2011 Unit 4 apparatus for a variety of Question 8b experimental techniques including filtration, including use of fluted filter paper, or filtration under reduced pressure; AT k - Safely and carefully handle solids and liquids, including corrosive, irritant, flammable and toxic substances).
explain why benzene undergoes substitution reactions in preference to addition reactions. 3.3.10.2 Electrophilic substitution Learning objective Time Learning outcome Learning activity with opportunity to develop skills Assessment opportunities Resources Know nitration and acylation reactions of aromatic compounds, including the mechanism and usefulness. 1.0 weeks Students should be able to: equations and outline mechanisms for nitration and Friedel-Crafts acylation reactions of aromatic compounds. (including equations for the formation of electrophiles) understand the usefulness of nitration and acylation reactions Write equations (including for the formation of electrophiles) and mechanisms for nitration and Friedel-Crafts acylation reactions given the starting material and products (AO2 - Apply knowledge and understanding). Students could carry out the preparation of methyl by nitration of methyl benzoate, purification by recrystallisation and determination of melting point (AT d - Use laboratory apparatus for a variety of experimental techniques including filtration, including use of fluted filter paper, or filtration under reduced pressure; AT k - Safely and carefully handle solids and liquids, including corrosive, irritant, flammable and toxic substances). January 2012 Unit 4 Question 9a (QW12.4.09) January 2011 Unit 4 Question 6 (QW11.4.06) June 2010 Unit 4 Question 8 b) (QS10.4.08) January 2006 Unit 4 Question 7 (QW06.4.07) June 2011 Unit 4 Question 8b Chemistry review article: Probably the most important reactions in the world (Volume 15, edition 2)
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