CH3-CH2-CH2-CH2-COOH+CH3-CH2-OH ->>CH3-CH2-CH2-CH2-COOCH2-CH3+H2O
CH3-COOH+CH3-OH ->>CH3-COOCH3+H2O
CH3-CH2-CH2-CH2-COOH+CH3-CH2-OH ->>CH3-CH2-CH2-CH2-COOCH2-CH3+H2O
CH3-CH2-COOH+CH3-СН2-СН2-CH2-OH ->>CH3-CH2-COOCH2-СН2-СН2-СH3+H2O
CH3-CH2-CH2-СН2-CH2-COOH+CH3-OH. ->>CH3-CH2-СН2-CH2-CH2-COOCH3+H2O