Eletrophilic addition of Bromine to alkene involves bridge bromonium ion.Explain?
1 Answer
Mar 22, 2018
The halonium ion is invoked to account for the observed stereochemistry of addition when an olefinic ring is brominated....
Explanation:
The bromines in the final product are TRANS....and this is accounted for by the intermediacy of a cationic three-membered ring containing bromine..
Such intermediates have been isolated...and unambiguously characterized....
In the given example, there is a lot of shrubbery around the three-membered ring, and this enables its isolation as a salt....
