CH2=C-CH3 CH2=C-CH=CH2 CH CH 异丁烯 异戊二烯 (CH3)4C (CH3),OH (CH3)3 CBr CH3 CH,CHOH 新戊烷 新戊醇 叔丁基溴 仲丁醇 BrCH,Ci,Chcho CH2CHCHCOOH OH γ-溴代丁醛 a-羟基丁酸CH2 =C CH3 CH3 CH2 =C CH CH3 =CH2 异丁烯 异戊二烯 (CH3 ) 4 C (CH3 ) 3 CCH2OH (CH3 ) 3 CBr CH3 CH2 CHOH CH3 新戊烷 新戊醇 叔丁基溴 仲丁醇 BrCH2 CH2 CH2 CHO γ β α γ CH3 CH2 CHCOOH OH α 溴代丁醛 α 羟基丁酸