Now that we know what is required for an E2 reaction....
Let's see a cyclohexane E2 reaction!
We need a beta hydrogen
A strong base (>OH)
and protic solvent
The full E2 Reaction
The aklyl halide showing axial position
The transition state
How to reduce competition from SN2 reactions?
Add in a picture of the entire reaction again here
heat the reaction.
use a bulky base,
Use a primary alkyl halde,
Use a primary alkyl halide, use a bulky base, and heat the reaction.