12.2B Allylic bromination with n- bromosuccinimide(烯丙基的溴 代与N-溴代丁二酰亚胺NBS) Propene undergoes allylic bromination when it is treated with N-bromosuccinimide nbs) in CCl4 in the presence of peroxides or light light or roor CH,=CHCH3+ CH,=CHCH, Br NH CCl4 Propene 3-Bromopropene N-Bromosuccinimide Succinimide (NBS) insoluble in CClg12.2B Allylic bromination with N￾bromosuccinimide （烯丙基的溴 代与N-溴代丁二酰亚胺NBS) Propene undergoes allylic bromination when it is treated with N-bromosuccinimide (NBS) in CCl4 in the presence of peroxides or light. CH2=CHCH3 + N O O Br N-Bromosuccinimide (NBS) light or ROOR CCl4 CH2=CHCH2Br + NH O O Propene 3-Bromopropene Succinimide insoluble in CCl4