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What is the preparation of cyclohexanol from cyclohexene?

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Quick Answer

Cyclohexene is a product that can be prepared from cyclohexanol by dehydration, using an acid catalyst. Phosphoric acid is a common acid catalyst and can be used in this process.

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Full Answer

The process is done in two parts. The first part begins by preparing the alkene by dehydrating the alcohol. Afterwards, the alkene is subjected to robust oxidation conditions to create a dicarboxylic acid.

For the dehydration process to work, the original product has to be contaminated with water, not-yet-reacted alcohol (the cyclohexanol) and phosphoric acid. Once the process is complete, dicyclohexyl is present as a side product and must be removed in the first distillate. A second distillation needs to be completed to ensure that all of the dicyclohexyl is removed. The success of the overall conversion can be checked through a series of experimental checks and balances. An alkene is prepared from the alcohol in this process, which means that functional group adsorptions are able to help identify reactants and products via infrared spectroscopy technology.

Cyclohexene has a molecular formula of C6H10 and a molecular weight of 82.1436. It has several names including benzene tetrahydride; benzene, tetrahydro-; cyclohex-1-ene; tetrahydrobenzene; 1,2,3,4-tetrahydrobenzene; cykloheksen; and 1-cyclohexene.

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