CH 2536 Lecture 04 Aromaticity 14.4, 14.8-10

CH 2536 Lecture 04 Aromaticity 14.4, 14.8-10 - Br Br 2 ,...

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Lecture 4 Aromatic Heterocyclic Compounds Section 14.4 Nomenclature and Reactions of Benzene Sections 14.8-10
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Heterocyclic aromatic systems
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Heterocyclic aromatic systems
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Other aromatic systems
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Other aromatic systems
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Omits 14.6 Antiaromaticity 14.7 MO Description of aromaticity and antiaromaticity
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Nomenclature of benzene derivatives
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Nomenclature of benzene derivatives
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Nomenclature of benzene derivatives
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Nomenclature of benzene derivatives
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Nomenclature of benzene derivatives Ar is a general term that applies to any substituted phenyl group. All three compounds below, for example, could be abbreviated as ArOH
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Benzene is unusually stable: How benzene reacts Br 2 , room temp very fast Br Br + Br
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Unformatted text preview: Br Br 2 , room temp No reaction Cyclohexene and benzene: 1. Cyclohexene How benzene reacts Br + Br 2 Br Br H Br Br -Br addition substitution Br -Br Cyclohexene and benzene: 2. Benzene How benzene reacts Br + Br 2 Br Br H Br Br -Br addition NOT AROMATIC substitution Br -Br AROMATIC When benzene does react it does so by SUBSTITUTION and not by addition. Benzene is a nucleophile that reacts with an electrophile How benzene reacts Benzene is a nucleophile that reacts with an electrophile How benzene reacts Reaction Coordinate Diagrams for the Two Benzene Reactions General Mechanism for Electrophilic Aromatic Substitution of Benzene...
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This note was uploaded on 05/06/2008 for the course CHEM 2536 taught by Professor Berg during the Spring '08 term at Virginia Tech.

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CH 2536 Lecture 04 Aromaticity 14.4, 14.8-10 - Br Br 2 ,...

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