CH2=CH—CH—CH3 + HBr —(t°)→ CH3—CHBr—CH—CH3 ___________|__________________ ____________________| ___________CH3_______________ ____________________CH3 CH3—CHBr—CH—CH3 + KOH(спирт. р-р) —(t°)→ CH3—CH=C—CH3 + _________ _____|________________________________________________| _________ _____CH3_____________________________________________CH3 + KBr + H2O
