# Enolate formation and tosylate displacement in cis/trans decalin

What will happen in the following reactions? This is Problem 3d from Chapter 6 of Zweifel and Nantz's Modern Organic Synthesis.

I thought that after the hydroxyl group is converted into a good leaving group ($\ce{OTs}$), an enolate would be formed which would attack $\ce{CH_2OTs}$, but I guess the fused cyclobutane thus obtained would be too strained. What else could happen?

• There is a solution manual to the book which essentially fully supports the accepted answer. Aug 27 '18 at 17:28