What is the chemical name of cumene?
isopropylbenzene
Cumene, also known as isopropylbenzene, 2-phenylpropane, or (1-methylethyl) benzene, is a colorless, volatile liquid with a gasoline-like odor.
What functional group is cumene?
alkylbenzene
Cumene is an alkylbenzene that is benzene carrying an isopropyl group.
How is cumene made?
Cumene is produced from the distillation of coal tar and petroleum fractions or by the alkylation of benzene with propene using an acidic catalyst. It is used almost exclusively to produce phenol and acetone.
What is another name of cumene?
Cumene is a common name for isopropylbenzene, an organic compound. Cumene is a volatile colorless liquid at room temperature with a characteristic sharp, penetrating, aromatic odor.
What is cumene reaction?
The cumene process (cumene-phenol process, Hock process) is an industrial process for synthesizing phenol and acetone from benzene and propylene. The term stems from cumene (isopropyl benzene), the intermediate material during the process.
Where is cumene used?
Cumene, also known as isopropylbenzene, 2-phenylpropane or (1-methylethyl) benzene, is widely used as a chemical intermediate in the production of phenol and acetone. Cumene is also used as a thinner for paints, lacquers, and enamels and it is a natural component of coal tar and petroleum.
How is phenol from cumene?
Preparation of Phenols from Cumene Cumene is an organic compound obtained by Friedel-Crafts alkylation of benzene with propylene. Upon oxidation of cumene (isopropylbenzene) in the presence of air, cumene hydroperoxide is obtained. Upon further treatment of cumene hydroperoxide with dilute acid, phenols are obtained.
What is cumene used for?
What is Kolbe’s reaction with example?
(i) Kolbe’s reaction: When phenol is treated with sodium hydroxide, sodium phenoxide is produced. This sodium phenoxide when treated with carbon dioxide, followed by acidification, undergoes electrophilic substitution to give ortho-hydroxybenzoic acid as the main product. This reaction is known as Kolbe’s reaction.
What is cumene process Class 12?
Cumene (isopropylbenzene) or (1-methylethyl) benzene is an organic compound obtained by Friedel-Crafts alkylation of benzene with propylene. Cumene is oxidised in the presence of air to cumene hydroperoxide. Now, cumene hydroperoxide is treated with dilute acid to prepare phenol and acetone as by-products.
What products contain cumene?
Cumene is used to manufacture other chemicals such as phenol, acetone, acetophenone, and methyl styrene. It is used as a thinner in paints, lacquers, and enamels. It is a component of high octane motor fuels. Cumene in used in the manufacture of rubber, iron and steel, and pulp and paper.
What is cumene and how it is prepared?
Cumene is an organic compound obtained by Friedel-Crafts alkylation of benzene with propylene. Upon oxidation of cumene (isopropylbenzene) in the presence of air, cumene hydroperoxide is obtained. Upon further treatment of cumene hydroperoxide with dilute acid, phenols are obtained.
What is another name for cumene?
What is cumene formula?
C9H12Cumene / Formula
Is cumene a benzene?
Cumene is an alkylbenzene that is benzene carrying an isopropyl group.
Is cumene a phenol?
Alternatives to acetone co-production Starting with the alkylation of benzene with mixture of 1 and 2-butenes, the cumene process produces phenol and butanones.
How do you make cumene?
- I. preparation of cumene by reaction of isopropanol or a mixture of isopropanol and propene with benzene over an acid catalyst,
- II. oxidation of cumene to cumene hydroperoxide,
- III. acid-catalyzed cleavage of cumene hydroperoxide to give phenol and acetone and.
- IV. hydrogenation of acetone to form isopropanol.
Is cumene a hydrocarbon?
Cumene (isopropylbenzene) is an organic compound that is based on an aromatic hydrocarbon with an aliphatic substitution. It is a constituent of crude oil and refined fuels. It is a flammable colorless liquid that has a boiling point of 152 °C.
Where is cumene found?
5.1. Cumene occurs naturally in crude oil, and is found in the environment in plants and foodstuff. Cumene is primarily released into the environment during its production and use, and from emissions from gasoline engines.