chloro(methylsulfanyl)methane

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 7-hydroxy-1,2,3,4-tetrahydroisoquinoline-2-carboxylic acid benzyl ester (2.5 g) in dimethylformamide (25 ml) was added 60% sodium hydride (390 mg) with ice-cooling and under an argon atmosphere, and the mixture was stirred at the same temperature for 30 min. Then, chloromethyl methyl sulfide (0.96 ml) was added, and the mixture was stirred at room temperature for 12 hours. After completion of the reaction, water was added and the mixture was extracted with ethyl acetate and washed with water. The organic layer was dried over anhydrous sodium sulfate and the solvent was evaporated. The obtained oil was purified by silica gel column chromatography (hexane:ethyl acetate=8:1) and dried under reduced pressure to give the title compound (2.7 g). cooling and under an argon atmosphere the mixture was stirred at room temperature for 12 hours was added the mixture was extracted with ethyl acetate washed with water The organic layer was dried over anhydrous sodium sulfate the solvent was evaporated The obtained oil was purified by silica gel column chromatography (hexane:ethyl acetate=8:1) dried under reduced pressure

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 7-hydroxy-1,2,3,4-tetrahydroisoquinoline-2-carboxylic acid tert-butyl ester (13 g) in dirnethylformamide (100 ml) was added 60% sodium hydride (2.5 g) under an argon atmosphere, and the mixture was stirred at room temperature for 30 minutes. Then, chloromethyl methyl sulfide (5.2 ml) was dropwise added with ice-cooling, and the mixture was stirred at room temperature overnight. After completion of the reaction, the reaction mixture was poured into water, extracted with ethyl acetate and washed successively with water and saturated brine. The organic layer was dried over anhydrous sodium sulfate and the solvent was evaporated and the obtained residue was purified by silica gel column chromatography (hexane:acetone=20:1-10:1) and dried under reduced pressure to give the title compound (9.6 g). cooling the mixture was stirred at room temperature overnight After completion of the reaction extracted with ethyl acetate washed successively with water and saturated brine The organic layer was dried over anhydrous sodium sulfate the solvent was evaporated the obtained residue was purified by silica gel column chromatography (hexane:acetone=20:1-10:1) dried under reduced pressure

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 2,4-dichloro-phenol (10 g, 61.35 mmol) in dry DMF (100 mL) was added NaH (2.06 g, 85.89 mmol, 60% in mineral oil). The mixture was stirred for 30 min. at room temperature followed by dropwise addition of chloro-methylsulfanyl-methane (5.65 mL, 67.48 mmol) and stirring was continued for 16 hrs at ambient temperature. The reaction was quenched by addition of water (150 mL) and extracted with diethyl ether (2×100 mL). The combined organic phases were washed with saturated aq. ammonium chloride (2×100 mL), dried (Na2SO4), filtered and evaporated in vacuo afforded 17 g crude 2,4-dichloro-1-methylsulfanylmethoxy-benzene which was used without further purification in the next step. stirring was continued for 16 hrs at ambient temperature The reaction was quenched by addition of water (150 mL) extracted with diethyl ether (2×100 mL) The combined organic phases were washed with saturated aq. ammonium chloride (2×100 mL) dried (Na2SO4) filtered evaporated in vacuo