Methanol → 2-Chloro-4-hydroxy-benzoic acid methyl ester

참여 물질

반응 단계

A solution of 2-chloro-4-hydroxy-benzoic acid (3.70 g, 21.4 mmol)) in methanol (50 ml) was treated with thionyl chloride (2.4 ml, 32 mmol) dropwise and stirred for 24 hours and the solvents were removed in vacuo. The residue was dissolved in ethyl acetate and washed with sat. sodium hydrogen carbonate, dried and solvents were removed in vacuo. The residue was purified by column chromatography on silica gel (eluant with 30% EtOAc:70% cyclohexane) to yield the desired product as a yellow solid, 3.68 g, 92%.

출처 및 근거