conc. sulphuric acid in ethanol; ethyl acetate

sulfuric acid in toluene 2 h; Heating;

lithium aluminium tetrahydride in tetrahydrofuran Heating;

sodium hydroxide T=37°C; various temp.; also in phosphate buffer (pH 7.4) or enzyme catalyzed (microsomal hog liver esterase); energy of activation; Rate constantThermodynamic data;