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23 Ιαν 2023 · Experiments have shown that substituents on a benzene ring can influence reactivity in a profound manner. For example, a hydroxy or methoxy substituent increases the rate of electrophilic substitution about ten thousand fold, as illustrated by the case of anisole in the virtual demonstration (above).
The reaction of a substituted ring with an activating group is faster than benzene. On the other hand, a substituted ring with a deactivated group is slower than benzene. Activating groups speed up the reaction because of the resonance effect.
Experiments have shown that substituents on a benzene ring can influence reactivity in a profound manner. For example, a hydroxy or methoxy substituent increases the rate of electrophilic substitution about ten thousand fold, as illustrated by the case of anisole in the virtual demonstration (above).
Study with Quizlet and memorize flashcards containing terms like What are substituted benzene rings?, What is a phenol?, Is phenol weakly acidic or alkaline? and more.
Study with Quizlet and memorize flashcards containing terms like Phenol, Why are phenols more reactive than benzene?, Electron donating groups and more.
1 Μαΐ 2016 · We will examine numerous example spectra and learn how the position of C-H wagging peaks, and the presence or absence of a ring-bending peak, allow one to distinguish between mono-, ortho-, meta-, and para-substituted rings most of the time.
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