Ce structura au alchenele care prin oxidare cu KMNnO4 si H2SO4 formeaza:
a) 2 moli acid propionic (CH3-CH2-COOH);
b) 2 moli acid acetic;
c) un mol acetona (CH3-CO-CH3) si un mol acid propionic;
d) un mol acid acetic (CH3-COOH) si un mol acetona;
e) 2 moli butanona (CH3-CO-CH2-CH3).