friend this is an image from ur notes on P-P rearrangement...what changes took place in last two steps is unclear to me..can u throw some light on the last two steps?
thanx
39Subho is correct...if you want a more accurate diagram -:
It's simple ring opening. In the last step, as there is no nucleophile present, a proton is lost and a double bond is formed, as that is the only way the cation can be relieved of its charge.
1well plz look into these "yet untouched" threads..
http://www.targetiit.com/iit-jee-forum/posts/calculus-walculus-herly-berly-18434.html
http://www.targetiit.com/iit-jee-forum/posts/find-n-18430.html
http://www.targetiit.com/iit-jee-forum/posts/concept-18420.html
http://www.targetiit.com/iit-jee-forum/posts/how-to-do-this-one-18384.html
