Aromaticity: Benzene, Pyridine and Pyrrole – Flashcards
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Four uses for benzene
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Oil Coal tar distillate Pharmaceuticals Plastic
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Huckel's Rule: Three features that a system requires to be aromatic
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Planar Fully conjugated Cyclic
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The energy released by benzene when being hydrogenated
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86kcal/mol
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The type of reaction benzene is expected to undergo (like an alkene) Why doesn't it undergo this?
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Electrophilic addition Because the product is energetically unfavourable
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Three examples of compounds containing aromatic structures
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Asprin Prozac Daunomycin
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What is daunomycin?
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An anti-cancer agent
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How daunomycin works
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It intercalates with DNA Causes distortion of DNA helix Prevents cell replication
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What is an aromatic heterocycle?
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An aromatic compound where one or more of the carbon atoms are been replaced with an atom other than carbon
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Define a pyridine
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A 6-membered aromatic heterocycle containing nitrogen
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Define a pyrrole
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A 5-membered aromatic heterocycle containing nitrogen
