3. Cycloalkanes  

3.4 Conformations of cyclohexane

In this section, you need to know the following information:

1) Cycloalkanes are less flexible than open-chain alkanes.

2) Cyclohexane has many possible conformations,such as chair conformation, boat conformation, twist-boat conformation  and so on. 

3) Chair conformation is most stable.

4) Stable conformation of substituted cyclohexane 

5) Axial and equatorial hydrogen atoms

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