A) axit axetic+(Cl2, ánh sáng)—>A+(NaOH dư)–>B+(HCl)—>C—>axit oxalic
axit axetic—>D—>E (1500°C, làm lạnh nhanh)—>F—>axit oxalic
B) C4H6 + (Br2, 1:1)—>A + (H2O, OH-, t°)—>B + (CuO, t°)—>E + (O2, Mn, t°)—>F + (NaOH)—>G + (NaOH, CaO, t°)—>etilen
C) O-BrC6H4CH2Br + NaOH dd
D) P-HOCH2C6H4OH + HBr
CH2=CH-CH=CH2 —> CH2Br-CH=CH-CH2Br —> CH2OH-CH=CH-CH2OH —> OHC-CH=CH-CHO —> HOOC-CH=CH-COOH —> NaOOC-CH=CH-COONa —> CH2=CH2
CH3COOH —> CCl3-COOH —> NaOOC-COONa —> HOOC-COOH
CH3COOH —> CH3COONa —> CH4 —> C2H2 —> HOOC-COOH
C4H6 mới viết được
o-BrC6H4CH2Br + NaOH —> o-BrC6H4CH2OH + NaBr
p-HOCH2C6H4OH + HBr —> p-HO-C6H4-CH2Br + H2O
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