Question

How can I draw a Newman projection for cyclohexane?

Answer 1

A Newman projection for cyclohexane is two Newman projections joined together.

Explanation:

For the chair form, view the diagram so that the carbon atom nearest to you (`"C-6"`) is "up", `"C-2"` is "behind" `"C-1"`, and `"C-4"` is "behind" `"C-5"`.

Draw side-by-side projections of the `"C1-C2"` and `"C5-C4"` bonds.

Join the two diagrams with the front carbon (`"C-6"`) at the top and the rear carbon (`"C-3"`) at the bottom.

Add the groups (here they are `"H"` atoms) to the bonds extending from the Newman projections.

For the boat form, repeat the process.

The difference in this case is that the rear carbon (`"C-3"`) is "up" and the bonds are eclipsed.