Fenolany

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Phenolates - phenol salts having an ArO anion where Ar-aryl group (aromatic). Struktura

Phenolan anion has a negative charge formally placed on the oxygen atom, in fact it interacts with the electron cloud of the aromatic ring. Basicity

Substituents of the aromatic ring have a strong influence on the acidic properties of the phenols, and thus on the basic properties of the conjugated bases, namely phenolic ions. The electron-receptor substituents (eg -NO2) reduce the density of electrons in the ring, so they will stabilize negative phenolic anions by drawing electrons. They make a weaker rule, stabilizing it, making it less prone to pretending. On the other hand, the electron donor substituents - in contrast - increase the electron density of the ring and thus destabilize the phenolic anion, so that it is more susceptible to the hydrogenation of the cation. receiving

Unlike ordinary alcoholates, usually obtained by reacting anhydrous alcohol with a lithium, phenols can usually be obtained by treating the phenol with a strong base such as NaOH. The equilibrium of reaction was then: ArOH + NaOH = Arona + HOH

jonowo:

ArOH + OH = ArO + HOH

Due to the significant acidity of phenol (it is an acid stronger than water), it will be shifted to the right, ie phenol will predominate.

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