2-ethylhexyl 3-sulfanylpropanoate

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: A solution of 1-bromo-2-fluoro-4-trifluoromethyl-benzene (5.0 g, 20.6 mmol) and DIEA (7.2 mL, 41.1 mmol) in toluene (100 mL) is degased under N2 atmosphere. To this mixture, Pd2 dba3 (753 mg, 0.82 mmol), Xantphos (952 mg, 1.65 mmol) and 3-mercapto-propionic acid 2-ethyl-hexyl ester (5.9 mL, 25.7 mmol) are added and the reaction is heated at reflux overnight. The resulting mixture is filtered over a plug of silica (EtOAc) and the organic is concentrated in vacuo. Purification by silica chromatography (EtOAc/petroleum ether; 3:97) affords the desired product. the reaction is heated at reflux overnight The resulting mixture is filtered over a plug of silica (EtOAc) the organic is concentrated in vacuo Purification by silica chromatography (EtOAc/petroleum ether; 3:97)

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

Procedure: A solution of 1-bromo-2-fluoro-4-trifluoromethyl-benzene (5.0 g, 20.6 mmol) and DIEA (7.2 mL, 41.1 mmol) in toluene (100 mL) is degased under N2 atmosphere. To this mixture, Pd2 dba3 (753 mg, 0.82 mmol), Xantphos (952 mg, 1.65 mmol) and 3-mercapto-propionic acid 2-ethyl-hexyl ester (5.9 mL, 25.7 mmol) are added and the reaction is heated at reflux overnight. The resulting mixture is filtered over a plug of silica (EtOAc) and the organic is concentrated in vacuo. Purification by silica chromatography (EtOAc/petroleum ether; 3:97) affords the desired product. the reaction is heated at reflux overnight The resulting mixture is filtered over a plug of silica (EtOAc) the organic is concentrated in vacuo Purification by silica chromatography (EtOAc/petroleum ether; 3:97)

Conditions: temp:110.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Intermediate 11 (1.4 g, 4 mmol) is dissolved in toluene (16 mL) and DIEA (1.4 mL, 8 mmol). Next, Pd2dba3 (110 mg, 0.12 mmol), Xantphos (139 mg, 0.24 mmol) and 3-Mercaptopropionic acid 2-ethylhexylester (1.14 mL, 5 mmol) are added, and the resulting solution is flushed with N2. Reaction mixture is stirred at 110° C. overnight. After evaporation, the crude is purified using column chromatography. The resulting product is obtained as an oil, which crystallised overnight. Obtained product is used as such. the resulting solution is flushed with N2 Reaction mixture After evaporation the crude is purified The resulting product is obtained as an oil, which crystallised overnight

Conditions: temp:110.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Intermediate 11 (1.4 g, 4 mmol) is dissolved in toluene (16 mL) and DIEA (1.4 mL, 8 mmol). Next, Pd2dba3 (110 mg, 0.12 mmol), Xantphos (139 mg, 0.24 mmol) and 3-Mercaptopropionic acid 2-ethylhexylester (1.14 mL, 5 mmol) are added, and the resulting solution is flushed with N2. Reaction mixture is stirred at 110° C. overnight. After evaporation, the crude is purified using column chromatography. The resulting product is obtained as an oil, which crystallised overnight. Obtained product is used as such. the resulting solution is flushed with N2 Reaction mixture After evaporation the crude is purified The resulting product is obtained as an oil, which crystallised overnight

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

Procedure: To a mixture of 4-(benzyloxy)-2-fluoro-1-nitrobenzene (2.00 g), potassium carbonate (1.23 g) and DMF (11 mL) was added dropwise 2-ethylhexyl 3-sulfanylpropanoate (2.02 mL), and the mixture was stirred at room temperature overnight. The reaction mixture was diluted with ethyl acetate, and washed with saturated brine. The obtained organic layer was dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane/ethyl acetate) to give the title compound as a yellow liquid (3.60 g). washed with saturated brine The obtained organic layer was dried over anhydrous magnesium sulfate the solvent was evaporated under reduced pressure The residue was purified by silica gel column chromatography (hexane/ethyl acetate)

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

Procedure: To a mixture of 4-(benzyloxy)-2-fluoro-1-nitrobenzene (2.00 g), potassium carbonate (1.23 g) and DMF (11 mL) was added dropwise 2-ethylhexyl 3-sulfanylpropanoate (2.02 mL), and the mixture was stirred at room temperature overnight. The reaction mixture was diluted with ethyl acetate, and washed with saturated brine. The obtained organic layer was dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane/ethyl acetate) to give the title compound as a yellow liquid (3.60 g). washed with saturated brine The obtained organic layer was dried over anhydrous magnesium sulfate the solvent was evaporated under reduced pressure The residue was purified by silica gel column chromatography (hexane/ethyl acetate)

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 3′-bromoacetophenone (10 g, 50 mmol), N,N-diisopropylethylamine (18 mL, 0.10 mol), 3-mercaptopropionic acid 2-ethylhexyl ester (11 mL, 48 mmol), 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (0.29 g, 0.50 mmol) and tris(dibenzylideneacetone)palladium(0) (0.46 g, 0.50 mmol) in 1,4-dioxane (250 mL) was stirred at 100° C. for 2 days. After the reaction solution was filtered with celite, the filtrate was concentrated in vacuo until the volume became one third approximately. Water (200 mL) was added thereto, extracted with ethyl acetate (200 mL). The organic layer was washed with brine (200 mL) and dried over anhydrous magnesium sulfate. The solvent was removed under reduced pressure to give a mixture including 3-(3-acetylphenyl)thiopropionic acid 2-ethylhexyl ester (19 g). This mixture (17 g) was dissolved in tetrahydrofuran (200 mL), sodium ethoxide (7.0 g, 0.10 mol) in ethanol (40 mL) was added thereto, and then the whole was stirred at 50° C. for 2 hours. Water (200 mL) was added to the reaction solution and washed with ethyl acetate (200 mL). 1N Hydrochloric acid (100 mL) was added to the aqueous layer and extracted with ethyl acetate (300 mL), then the organic layer was washed with brine (100 mL) and dried over anhydrous magnesium sulfate. The solvent was removed under reduced pressure to give the title reference compound (6.2 g) as a brown oil (Yield 81%). After the reaction solution was filtered with celite the filtrate was concentrated in vacuo until the volume Water (200 mL) was added extracted with ethyl acetate (200 mL) The organic layer was washed with brine (200 mL) dried over anhydrous magnesium sulfate The solvent was removed under reduced pressure to give a mixture washed with ethyl acetate (200 mL) 1N Hydrochloric acid (100 mL) was added to the aqueous layer extracted with ethyl acetate (300 mL) the organic layer was washed with brine (100 mL) dried over anhydrous magnesium sulfate The solvent was removed under reduced pressure