C2H5-OH --> CH3-COH --> CH3-COOH -->Br-CH2-COOH --> H2N-CH2-COOH --> H2N-CH2-COOC2H5
решение цепи превращений:
C2H5-OH + [O] = CH3-COH + H2O
CH3-COH + [O] = CH3-COOH
CH3-COOH + Br2 = Br-CH2-COOH + HBr
Br-CH2-COOH + 2NH3 = H2N-CH2-COOH + NH4Br
H2N-CH2-COOH + C5H5OH = H2N-CH2-COOC2H5 + H2O