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`C_4H_9OH \overset{t^o}\to C_4H_8 + H_2O`
`C_4H_8 + H_2 \overset{t^o; Ni}\to C_4H_{10}`
`C_4H_{10} \overset{t^o}\to CH_4 + C_3H_6`
$2CH_4 \xrightarrow{\text{Làm lạnh nhanh}} C_2H_2 ↑ + 3H_2 ↑$
`C_2H_2 + H_2 \overset{t^o; PdCO_3; Pd}\to C_2H_4`
`3C_2H_4 + 2KMnO_4 + 4H_2O \overset{t^o}\to 3C_2H_4(OH)_2 + 2MnO_2 + 2KOH`
`C_2H_4(OH)_2 + 2HBr -> C_2H_4Br_2 + 2H_2O`
`C_2H_4Br_2 + Zn \overset{t^o}\to C_2H_4 + ZnBr_2`