SEARCH Articles Figures Tables 1.3.4- Thiadiazole substituents, highly activated Activating groups Substituents that, when Activating groups substituents Activating substituents, and electrophilic Activating substituents, and electrophilic aromatic substitution Activating, Ortho, Para-Directing Substituents Activation by n Donors (X and C Substituents) Activation energies substituent effects Activation or Deactivation by Substituents on a Benzene Ring Nucleophilic substitution activation by nitrogenous substituents Ortho-activating substituents Para substituents, activation Quantitative structure-activity substituent effects Reactivity of benzene rings activating and deactivating substituents Resonance active substituents Ring-activating substituents Structure-activity relationship substituent groups Structure-activity relationships specific substituent groups Substituent Effects in Electrophilic Aromatic Substitution Activating Substituents Substituents activation or deactivation Why Substituents Activate or Deactivate a Benzene Ring