(1).与HX的加成( HCL HBr,HD): C=C-+ HX C-C Activity: HCI< HBr HI CHCH=CH HI CH3 CHICH3 2-Iodopropane (isopropyl iodide CH3 CHBrCH3 CHa-CH=CH + HBr (Markovnikov rule) R-O-O-R CH CHCH Br (anti-Markovnikov rule)- C = C - + HX - C – C - H X Activity: HCl < HBr < HI CH3CH = CH2 + HI CH3CHICH3 2-Iodopropane (isopropyl iodide) CH3 -CH=CH2 + HBr CH3CHBrCH3 R-O-O-R CH3CH2CH2Br (Markovnikov rule) (anti-Markovnikov rule) (1). 与HX的加成(HCl, HBr, HI)：