Phenol Concept Map
Properties and Reactions
Phenol is an important organic compound that students studying H2 Chemistry should know well. It consists of a hydroxyl group (-OH) attached to a benzene ring. This structure gives it unique properties and reactivity compared to other alcohols.
One key property is its acidity. Unlike most alcohols, phenol can donate a proton, making it a weak acid. This acidity results from the resonance stabilization of the phenoxide ion formed when it loses a hydrogen ion. As a result, phenol can react with strong bases to form salts, such as sodium phenoxide.
Phenol also exhibits significant solubility in water due to hydrogen bonding. However, it is less soluble than typical alcohols because of the hydrophobic benzene ring. This unique balance of properties makes phenol interesting in various chemical reactions.
One of the most notable reactions involving phenol is electrophilic substitution. In this process, phenol can react with electrophiles, such as bromine or nitric acid. For example, when phenol reacts with bromine, it forms bromophenol, a compound used in dyes and pharmaceuticals.
It is considered a very activated benzene ring as the OH group delocalises a lone pair of electron from the oxygen atom into the pi electron cloud. This makes the benzene ring more electron rich thus more reactive than the normal benzene without the OH group.
Phenol has practical applications in everyday life. It is widely used in the production of plastics, such as Bakelite, and in disinfectants. Its antiseptic properties make it useful in medical settings.
This is the 5th organic concept map in a series of posts. Feel free to print it out for your personal use 🙂
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