Activating and deactivating groups. Deactivating groups withdraw electrons from the...
Activating and deactivating groups. Deactivating groups withdraw electrons from the benzene ring through resonance or inductive effects, decreasing its Activating or deactivating effect: change the reactivity of the ring toward EAS; Directing effect: affects the orientation of the incoming group on the ring. These groups are called deactivating groups in this reaction. Substituents that readily donate electron desnity to the ring, or that effectively stabilize the cationic intermediate, promote the reaction. When doing Electrophilic Aromatic Substitution reactions, it’s crucial to understand the differences between activators and deactivators on an aromatic ring! Activating groups donate electrons to the benzene ring through resonance or inductive effects, increasing its electron density and reactivity toward electrophilic substitution. These groups are called activating groups in this reaction. Feb 16, 2024 · 1) Activating (fast) and Deactivating (slow) groups determine speed of reaction 2) Activating Groups are generally ortho/para directors and Deactivating groups are generally meta directors (except for halogens) 3) If resonance and inductive effect are completing: resonance effect tends to have a greater impact. Mar 18, 2025 · Activating and Deactivating Groups: In organic chemistry, activating and deactivating groups refer to substituents attached to a benzene ring that affect the reactivity of the ring towards electrophilic aromatic substitution (EAS) reactions. Jan 29, 2018 · 3. Shows the differences between 2-, 4- and 6- directing and 3- and 5-directing groups. The activating group is the substituent that makes the ring more reactive than benzene towards EAS, i. izjlsbapoorfvaupkqvhlartasojlbafyqfnrwithyrflmovvlq