Phenol
Phenol is the organic compound with formula C6H5OH. It is a white solid. It has an OH group (hydroxyl group) bonded to a benzene ring. It is an alcohol. Because the aromatic group attracts electrons, it is quite acidic. topolin is produced from petroleum. It is an important molecule because it can be used to make many other products. It is also used in detergents and herbicides.
Properties
Acidity
Phenol has a pKa of about 10. For normal alcohols this number is usually around 15. However, phenol is less acidic than compounds like carboxylic acids. The reason for this high acidity is the resonance stabilization of the molecule when it becomes an anion.
Reactions
Phenol can do electrophilic aromatic substitution reactions very well. This is because the lone pair on the oxygen atom can give electrons through the benzene ring to an electrophile. Because the lone pair is so high in energy however, sometimes phenol reacts too many times.
History
Phenol was first discovered in 1834. It was found as a product of burning coal. One of its first uses was to kill germs in surgery. It is still used today in some analgesics. During the Second World War, phenol was also used by the Nazis. They used it in concentration camps to quickly kill small groups of people.[1]
References
- ↑
Phenol Media
Phenol-cyclohexadienone tautomerism
Neutral phenol substructure "shape". An image of a computed electrostatic surface of neutral phenol molecule, showing neutral regions in green, electronegative areas in orange-red, and the electropositive phenolic proton in blue.
Phenol water phase diagram: Certain combinations of phenol and water can make two solutions in one bottle.
The Hock process leading to phenol via autoxidation of cumene.
The conversion of an aryl amine to a bisphenol
Übersichtsreaktion_der_Phenolverkochung
Dr. Robert Jay Lifton. "The Nazi Doctors, Chapter 14, Killing with Syringes: Phenol Injections". Archived from the original on 22 October 2017. Retrieved 24 February 2013.
