The most effective proposal We've got for what is occurring is formation of a cyclic halonium ion, that's a 3-membered ring bearing a beneficial formal charge over the halogen. Having said that, halogens will not be electrophillic adequate to break the aromaticity of benzenes, which need a catalyst to activate. https://isbromazolamanopioid03603.blogocial.com/what-does-bromazolam-in-pg-mean-73357735