Understand orientation in monosubstituted benzene during electrophilic aromatic substitution. This BP301T guide explains ortho-, meta-, and para-directing groups, activating and deactivating effects, resonance, inductive effects, and important exceptions such as halogens.
Learn how substituents affect the reactivity of monosubstituted benzene during electrophilic aromatic substitution. This guide explains activating and deactivating groups, electron-donating and electron-withdrawing effects, and the relative reactivity of substituted benzene rings.
Learn Friedel–Crafts alkylation of benzene through a clear, step-by-step electrophilic aromatic substitution mechanism. This guide explains electrophile formation, the role of AlCl₃, sigma-complex formation, carbocation rearrangement, major limitations, and important examination points.
Learn the sulphonation and halogenation of benzene through clear, step-by-step electrophilic aromatic substitution mechanisms. This explains electrophile formation, reaction conditions, sigma-complex formation, restoration of aromaticity, products, and important examination points.
Learn the nitration of benzene as an electrophilic aromatic substitution reaction, including nitronium-ion formation, sigma-complex formation, reaction mechanism, and restoration of aromaticity.
The relative aromaticity and reactivity of the five-membered heterocyclic compounds—Pyrrole, Furan, and Thiophene—are governed by the electronegativity of the heteroatom and the effectiveness of the p-orbital overlap with the carbon atoms. Relative Aromaticity Aromaticity depends on how much a molecule “prefers” to keep its lone pair of the π -electrons delocalized into the ring to … Read more