[blondie915]

Show the reagents to make the transformation from
1,2-dimethyl-butanol to 4,5-dimethyl-2-hexene in two steps.
Thank you for any *delete me* See the imagine below in case I didn't name it correctly!

My thoughts: I think I might need a grignard involved somewhere because of the carbons added to the final product. I'm not sure how to approach this problem.

[critzz]

How do you convert the hydroxyl group to a good leaving group?

[Babcock_Hall]

I don't think you need or even want a Grignard.
EDT
Think about other ways to form carbon-carbon bonds.

[OCSaviour]

Here's a hint: Use CH₃C≡CNa.

[Maximus93]

This is my first post so I'm very willing to be corrected but I think the nomenclature you've given is wrong (to be a side point on this question).

It'd be 3-methylbutan-2-ol ----> 4,5-dimethylhex-2-yne