HETEROCYCLIC COMPOUNDS
The aromatic heterocyclic compounds also follow the Huckel’s rule. According to Huckel’s rule an aromatic compounds must be cyclic in nature with planar geometry due to conjugate double bonds and must have (4n+2)π electrons. Examples of aromatic heterocyclic compounds are shown in figure 2. O Furan NH Pyrrole S Thiophene N Pyridine N H ...
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1 Heterocyclic Compounds: An Introduction
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