Anti-Markovnikov Addition (HBr + Peroxide) (Peroxide → Br·; addition gives more stable radical intermediate; H donates → terminal)

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Peroxide → Br·; addition gives more stable radical intermediate; H donates → terminal bromide for terminal alkenes

What each symbol means

SymbolWhat it stands for
Br·Bromine radical
ROORPeroxide initiator

When to use this

Specific to HBr; peroxide effect not reliable for HCl/HI in standard JEE treatment.