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Aromatic Substituent

Order of Reactivity for Aromatic Substitution

Degree of ActivationSubstituents
Very Strongly Activating -OH -NH2,NHR,NR2 (O,P Directing)
Strongly Activating -OCH3 -OCR=O (phenol ester) -NH-CR=O (O,P Directing)
Activating -Alkyl, aryl, alkenyl (sigma domains) (O,P Directing)
Deactivating -Cl, F, Br, I -CH2OH, CH2Cl (O,P Directing)
Strongly Deactivating -COH=O, COR=O, CR=O, CH=O -SO3H -CN (M Directing)
Very Strongly Deactivating -NO2 -CF3 (M Directing)
Created by: 100000394121773
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