Hello there. Here's a problem that appeared on one of my tests.
What is the order of reactivity of halogens in electrophilic addition reaction via formation of cyclohalonium intermediate?
I tried to predict it using the mechanism, but couldn't reach a conclusion. Is this based on thermodynamic and kinetic data?
Here's the mechanism involving bromine, for reference:
Could someone please provide a detailed explanation for the above problem, with data if possible?
Thanks a lot.