Cyclohydrocarbons: Preparations
Cycloalkanes can be prepared by ring‐cyclization reactions, such as a modified Wurtz reaction or a condensation reaction. Additionally, they can be prepared from cycloalkenes and cycloalkynes (Figure 1).
Figure 1
Cycloalkenes and cycloalkynes are normally prepared from cycloalkanes by ordinary alkene‐forming reactions, such as dehydration, dehalogenation, and dehydrohalogenation. Typical preparations for cyclohexene and cyclohexyne are illustrated in Figure 2 .
Figure 2