In this problem, I know that initially a positive charge is formed at the carbon bearing the hydroxyl group , yielding a secondary carbocation.
But, I can't go any further with that. What kind of ring expansion could this be ?
How would we end up with 2 fused rings of different sizes and why? Is there any alkyl shift or hydride shift preceding the ring expanison?
I don't know how to predict the direction in which the expansion proceeds after the first step.
Can someone pls help me out with this? Thanks in Advance.