Lecture 6 - 282 Reactions of Substituted Benzenes Lecture 6...

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282 Lecture 6 – September 23, 2011 Reactions of Substituted Benzenes
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2 Reactions of Alkyl Substituents (4) v reduction of a nitro substituent
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3 Nomenclature of Disubstituted and Polysubstituted Benzenes v disubstituted benzenes can be named using o, m, p prefixes or numbers ortho ortho meta meta para 1 2 2 3 3 4 v substituents v listed in alphabetical order for disubstituted benzenes v are numbered in the direction that results in the lowest possible number
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4 Activators and Deactivators v substituents that donate electrons into the benzene ring increase the rate of electrophilic aromatic substitution = activators v substituents that withdraw electrons from the benzene ring decrease the rate of electrophilic aromatic substitution = deactivators
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5 Activators and Deactivators resonance effect inductive effect
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6 Activators and Deactivators
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7 Electrostatic Potential Maps O H 3 C N O O
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8 The Effect of Substituents on Orientation v the substituent already attached to the benzene ring determines the location
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Lecture 6 - 282 Reactions of Substituted Benzenes Lecture 6...

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