2-methoxy-3-methylsulfanylpropanoic acid

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred solution of sodium hydride (0.176 g, 4.41 mmol) in DMF (5 mL) was added a solution of 2-hydroxy-3-(methylthio)propanoic acid (0.25 g, 1.836 mmol) in 1 mL DMF at 25° C. and stirred for 10 min Vigorous bubbling was observed upon addition of NaH. Then iodomethane (0.126 mL, 2.020 mmol) was added and the solution was stirred at 25° C. overnight. The reaction was quenched by addition of 2 N HCl, extracted with 3×10 mL of EtOAc, the combined organic layers were washed with water (2×20 mL), concentrated and purified by column chromatography, eluted with 0-100% EtOAc/hexane, gave 2-methoxy-3-(methylthio)propanoic acid (126 mg, 0.839 mmol, 45.7% yield) as colorless oil: 1H NMR (400 MHz, CDCl3) δ 9.10 (s, 1H), 4.03 (dd, J=6.9, 4.4 Hz, 1H), 3.51 (s, 3H), 2.98-2.93 (m, 1H), 2.86 (dd, J=14.1, 6.9 Hz, 1H), 2.21 (s, 3H); EIMS m/z 150. Vigorous bubbling was observed upon addition of NaH the solution was stirred at 25° C. overnight The reaction was quenched by addition of 2 N HCl extracted with 3×10 mL of EtOAc the combined organic layers were washed with water (2×20 mL) concentrated purified by column chromatography eluted with 0-100% EtOAc/hexane

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred solution of sodium hydride (0.176 g, 4.41 mmol) in DMF (5 mL) was added a solution of 2-hydroxy-3-(methylthio)propanoic acid (0.25 g, 1.836 mmol) in 1 mL DMF at 25° C. and stirred for 10 min. Vigorous bubbling was observed upon addition of NaH. Then iodomethane (0.126 mL, 2.020 mmol) was added and the solution was stirred at 25° C. overnight. The reaction was quenched by addition of 2 N HCl, extracted with 3×10 mL of EtOAc, the combined organic layers were washed with water (2×20 mL), concentrated and purified by column chromatography, eluted with 0-100% EtOAc/hexane, gave 2-methoxy-3-(methylthio)propanoic acid (126 mg, 0.839 mmol, 45.7% yield) as colorless oil: 1H NMR (400 MHz, CDCl3) δ 9.10 (s, 1H), 4.03 (dd, J=6.9, 4.4 Hz, 1H), 3.51 (s, 3H), 2.98-2.93 (m, 1H), 2.86 (dd, J=14.1, 6.9 Hz, 1H), 2.21 (s, 3H); EIMS m/z 150. Vigorous bubbling was observed upon addition of NaH the solution was stirred at 25° C. overnight The reaction was quenched by addition of 2 N HCl extracted with 3×10 mL of EtOAc the combined organic layers were washed with water (2×20 mL) concentrated purified by column chromatography eluted with 0-100% EtOAc/hexane

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred solution of sodium hydride (0.176 g, 4.41 mmol) in DMF (5 mL) was added a solution of 2-hydroxy-3-(methylthio)propanoic acid (0.25 g, 1.836 mmol) in 1 mL DMF at 25° C. and stirred for 10 min Vigorous bubbling was observed upon addition of NaH. Then iodomethane (0.126 mL, 2.020 mmol) was added and the solution was stirred at 25° C. overnight. The reaction was quenched by addition of 2 N HCl, extracted with 3×10 mL of EtOAc, the combined organic layers were washed with water (2×20 mL), concentrated and purified by column chromatography, eluted with 0-100% EtOAc/hexane, gave 2-methoxy-3-(methylthio)propanoic acid (126 mg, 0.839 mmol, 45.7% yield) as colorless oil: 1H NMR (400 MHz, CDCl3) δ 9.10 (s, 1H), 4.03 (dd, J=6.9, 4.4 Hz, 1H), 3.51 (s, 3H), 2.98-2.93 (m, 1H), 2.86 (dd, J=14.1, 6.9 Hz, 1H), 2.21 (s, 3H); EIMS m/z 150. Vigorous bubbling was observed upon addition of NaH the solution was stirred at 25° C. overnight The reaction was quenched by addition of 2 N HCl extracted with 3×10 mL of EtOAc the combined organic layers were washed with water (2×20 mL) concentrated purified by column chromatography eluted with 0-100% EtOAc/hexane