1) CH3-CH3 + Br2=(условие-свет-hv) CH3-CH2-Br + HBr
2) CH3-CH2-Br + 2NH3 = CH3-CH2-NH2 + NH4-Br
3) CH3-CH2-NH2 + CH3-CH2-Br + NH3 = (CH3-CH2)2-NH + NH4-Br
4) (CH3-CH2)2-NH + CH3-CH2-Br + NH3 = (CH3-CH2)3-N + NH4-Br
5) (CH3-CH2)3-N + CH3-CH2-Br = [(CH3-CH2)4-N]Br