The best proposal we have for what is occurring is development of the cyclic halonium ion, that's a 3-membered ring bearing a good formal charge over the halogen. The predominance of allylic substitution above other positions is based on bond dissociation energies. An allylic C-H bond contains a energy of https://flubrotizolam-vs-bromazol50493.jiliblog.com/93959579/the-smart-trick-of-half-life-of-bromazolam-that-nobody-is-discussing