+C4H6
CH2=CH-CH=CH2 :Buta-1,3-đien (1)
CH3-CH=C=CH2 :Buta-1,2-đien (2)
+C5H8
CH2=C=CH-CH2-CH3 ;penta-1,2-đien (3)
CH3-CH=C=CH-CH3 ;penta-2.3-đien (4)
CH2=CH-CH=CH-CH3 ;penta-1,3-đien (5)
CH2=C(CH3)-CH=CH2 ;2-metyl buta-1,3-đien (6)
Những ankadien liên hợp :(1),(5)