CH3COOCH3=>X1=>(электролиз)X2=>(Br2, свет)X3=>(NaOH водн.)Х4=> бутадиен-1,3

CH3COOCH3 + NaOH --> CH3-COONa + CH3OH2CH3-COONa + 2H2O (эл.ток) --> C2H6 + 2CO2 + 2NaOH + H2C2H6 + Br2(hv)--> C2H5Br + HBrC2H5Br + NaOH(HOH) --> C2H5-OH + NaBr2C2H5-OH(ZnO,420C,p) --> H2C=CH-CH=CH2 + 2H2O + H2