C2H4- C2H5OH- CH3CHO-CH3COOH- CH3COOCH3-CH3OH-CO2
1. C2H4 + H2O -------> (над стрелкой H+, t) C2H5OH 2. C2H5OH + CH3COOH ---------> CH3COOC2H5 + H2O 3. CH3COOH + CH3OH = CH3COOCH3 + H2O