Reaction Mechanism abstraction of allylic H H Br Br Br一H+ Br cyclohexene allylic radical allylic bromide 2013 Pearson Education ino The mechanism involves an allylic radical stabilized by resonance. Both allylic radicals can react with bromine. 21 2013 Pearson Education Inc. Reaction Mechanism • The mechanism involves an allylic radical stabilized by resonance. • Both allylic radicals can react with bromine. 21 © 2013 Pearson Education Inc