1) H2N-CH2-CH2-COOH+CH3-CH2-OH=
2) C6H5NO2+H2=
3) H2N-CH2-CH2-COOH+H2N-CH2-CH2-CH2-COOH=

1) H2N-CH2-CH2-COO-CH2-CH3 + H2O2)C6H5NO2+3H2=>C6H5NH2+2H2O3)H2N-CH2-CH2-CO-NH-CH2-CH2-CH2-COOH+H2O