Bутен-1: CH2=CH-CH2-CH3 -> (n)CH2-CH(-CH2-CH3)-CH2-CH(-CH2-CH3)-....(-CH2-CH3)
Bутен-2: CH3-CH=CH-CH3 -> (n)CH3-CH(-CH=CH-CH3)-CH3-CH(-CH=CH-CH3)-....(-CH3)
2-метилбутен-2: CH3-C(=CH2)-CH2-CH3 -> (n)CH3-C(-CH2-CH2-CH3)=C(-CH2-CH2-CH3)-CH3"
Bутен-1: CH2=CH-CH2-CH3 -> (n)CH2-CH(-CH2-CH3)-CH2-CH(-CH2-CH3)-....(-CH2-CH3)
Bутен-2: CH3-CH=CH-CH3 -> (n)CH3-CH(-CH=CH-CH3)-CH3-CH(-CH=CH-CH3)-....(-CH3)
2-метилбутен-2: CH3-C(=CH2)-CH2-CH3 -> (n)CH3-C(-CH2-CH2-CH3)=C(-CH2-CH2-CH3)-CH3"