ethylene cyclohexane and HBr
The reaction between ethylene and HBr in the presence of cyclohexane as a solvent is a typical example of the addition of hydrogen halides to alkenes. The reaction is as follows:
C2H4 + HBr --> C2H5Br
In the presence of cyclohexane as a solvent, the reaction proceeds faster due to the increased solubility of the reactants, and the cyclohexane also acts as a non-reactive diluent to prevent side reactions. The product of the reaction is ethyl bromide, which is used as an intermediate in the production of other organic compounds.