Chapter_15_-_Benzene_&_Aromaticity

Chapter_15_-_Benzene_&_Aromaticity - CHM 138 H...

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CHM 138 H Benzene and Aromaticity
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Aromatic Compounds OH OH Aromatic Aromatic Not aromatic
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Aromatic Drugs (1) O COOH O H 3 C NH O H 3 C OH CH 3 H 3 C H 3 C COOH
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Aromatic Drugs (2) O S O O H 3 C O N COOH OH OH N H O F O N H F 3 C
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Aromatic Life Molecules H 2 N CH C CH 2 OH O HN N N N N NH 2 O H O H H H H P O O - HO O -
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AROMATICITY H OH H H HO N N O H H O
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OH N H O NH 2
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For disubstituted benzenes: R Cl Br Cl Cl
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CHARACTERISTICS OF AROMATIC COMPOUNDS (b) - all atoms must have an unhybridized p-orbital e.g. not aromatic aromatic (a)
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(b) C C C C C C H H H H H H
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H H H H H H
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H H H H H H
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(c) CHARACTERISTICS OF AROMATIC COMPOUNDS (b) (a)
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n = 0 n = 1 n = 2 (c) Aromatic molecules possess H H H H H H
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6 π -electrons 10 π -electrons 4 π -electrons N H (c) Aromatic molecules possess
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pyrrole N H
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6 π -electrons
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This note was uploaded on 04/25/2010 for the course CHM CHM138H1 taught by Professor Browning during the Fall '08 term at University of Toronto- Toronto.

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Chapter_15_-_Benzene_&_Aromaticity - CHM 138 H...

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