丙烯和溴水,亲电加成反应：CH2=CH-CH3 + Br2 -> CH2Br-CHBr-CH3和溴用光照或自由基引发剂引发可以发生：自由基取代：CH2=CH-CH3 +Br2 -> CH2=CH-CH2Br(主要反应)自由基加成：CH2=CH-CH3 +Br2 -> CH2Br-CHBr-CH3
H2C=CH-CH3 + Br2 = CH2Br-CHBr-CH3
