Conjugate Addition of HBr Br HBr CH2=CH-CH-CH2 CH2=CH-CHCH3 BrCH2-CH=CH-CH: + B ⊕ CH2-CH-CH-CH《 CH2-CH-CH-CH;Conjugate Addition of HBr C H2 =CH-CH=CH2 HBr C H2 =CH-CH-CH3 C H2-CH=CH-CH3 C H2 =CH-CHCH3 Br BrCH2 -CH=CH-CH3 Br Br