4-Chloro-3-ethylphenol

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

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 1,3-dinitrobenzene (16.8 g, 0.1 mol) and 4-chloro-3-ethylphenol (15.6 g, 0.1 mol) in 200 mL of dimethylsulfoxide was added cesium carbonate (65 g, 0.2 mol). The reaction mixture was heated at 100° C. under nitrogen overnight then cooled to room temperature. The reaction mixture was filtered through celite then rinsed with diethyl ether and a small amount of water. The filtrate was extracted several times with diethyl ether. The organic layers were combined, washed with water and brine, dried over MgSO4, and concentrated in vacuo to give 21.8 g (78%) of the desired 3-(4-chloro-3-ethylphenoxy)-1-nitrobenzene product as a dark orange oil, which was greater than 90% pure by reverse phase HPLC analysis. HRMS calcd. for C14H12ClNO3: 295.0849 [M+NH4]+, found 295.0862. then cooled to room temperature The reaction mixture was filtered through celite then rinsed with diethyl ether The filtrate was extracted several times with diethyl ether washed with water and brine dried over MgSO4 concentrated in vacuo

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: EX-8A) To a solution of 1,3-dinitrobenzene (16.8 g, 0.1 mol) and 4-chloro-3-ethylphenol (15.6 g, 0.1 mol) in 200 mL of dimethylsulfoxide was added cesium carbonate (65 g, 0.2 mol). The reaction mixture was heated at 100° C. under nitrogen overnight then cooled to room temperature. The reaction mixture was filtered through celite then rinsed with diethyl ether and a small amount of water. The filtrate was extracted several times with diethyl ether. The organic layers were combined, washed with water and brine, dried over MgSO4, and concentrated in vacuo to give 21.8 g (78%) of the desired 3-(4-chloro-3-ethylphenoxy)-1-nitrobenzene product as a dark orange oil, which was greater than 90% pure by reverse phase HPLC analysis. HRMS calcd. for C14H12ClNO3: 295.0849 [M+NH4]+, found 295.0862. then cooled to room temperature The reaction mixture was filtered through celite then rinsed with diethyl ether The filtrate was extracted several times with diethyl ether washed with water and brine dried over MgSO4 concentrated in vacuo

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

Procedure: A solution of N-(3-bromophenyl)-N-[2-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-3,3,3-trifluoropropyl]-3-(1,1,2,2-tetrafluoroethoxy)benzenemethanamine (75 mg, 0.124 mmol), cesium carbonate (81 mg, 0.248mmol), 4-chloro-3-ethylphenol (44 mg, 0.358 mmol), copper triflate benzene complex (6.24 mg, 10 mol %), 1-naphthoic acid (43 mg, 0.248 mmol) in 2:1 toluene:dimethylacetamide (3.0 mL) was heated at 105° C. for 96 hours. The reaction mixture was filtered through celite, and the solvent was evaporated. The residue was purified by reverse phase chromatography eluting with 50-90% acetonitrile in water to afford 16.2 mg (23%) of the desired 3-[[3-(4-chloro-3-ethylphenoxy)phenyl]-[[3-(1,1,2,2-tetrafluoroethoxy)phenyl] methyl]amino]-1,1,1-trifluoro-2-propanol product as an orange oil. HRMS calcd. for C26H23ClF7NO3: 566.1332 [M+H]+, found: 566.1332. 1H NMR (CDCl3) δ1.18 (t, 3H), 2.69 (q, 2H), 3.50-3.61 (m, 1H), 3.87 (dd, 1H), 4.284.39 (m, 1H), 4.63 (s, 2H), 5.88 (tt, 1H), 6.32-6.40 (m, 2H), 6.48 (dd, 1H), 6.69 (dd, 1H), 6.87 (d, 1H), 7.0-7.34 (m, 5H). The reaction mixture was filtered through celite the solvent was evaporated The residue was purified by reverse phase chromatography eluting with 50-90% acetonitrile in water

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

Procedure: A solution of N-(3-bromophenyl)-N-[2-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-3,3,3-trifluoropropyl]-3-(1,1,2,2-tetrafluoroethoxy)benzenemethanamine (75 mg, 0.124 mmol), cesium carbonate (81 mg, 0.248mmol), 4-chloro-3-ethylphenol (44 mg, 0.358 mmol), copper triflate benzene complex (6.24 mg, 10 mol %), 1-naphthoic acid (43 mg, 0.248 mmol) in 2:1 toluene:dimethylacetamide (3.0 mL) was heated at 105° C. for 96 hours. The reaction mixture was filtered through celite, and the solvent was evaporated. The residue was purified by reverse phase chromatography eluting with 50-90% acetonitrile in water to afford 16.2 mg (23%) of the desired 3-[[3-(4-chloro-3-ethylphenoxy)phenyl]-[[3-(1,1,2,2-tetrafluoroethoxy)phenyl] methyl]amino]-1,1,1-trifluoro-2-propanol product as an orange oil. HRMS calcd. for C26H23ClF7NO3: 566.1332 [M+H]+, found: 566.1332. 1H NMR (CDCl3) δ1.18 (t, 3H), 2.69 (q, 2H), 3.50-3.61 (m, 1H), 3.87 (dd, 1H), 4.284.39 (m, 1H), 4.63 (s, 2H), 5.88 (tt, 1H), 6.32-6.40 (m, 2H), 6.48 (dd, 1H), 6.69 (dd, 1H), 6.87 (d, 1H), 7.0-7.34 (m, 5H). The reaction mixture was filtered through celite the solvent was evaporated The residue was purified by reverse phase chromatography eluting with 50-90% acetonitrile in water

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: EX-18A) To a solution of 1,3-dinitrobenzene (16.8 g, 0.1 mol) and 4-chloro-3-ethylphenol (15.6 g, 0.1 mol) in 200 mL of dimethylsulfoxide was added cesium carbonate (65 g, 0.2 mol). The reaction mixture was heated at 100° C. under nitrogen overnight then cooled to room temperature. The reaction mixture was filtered through celite then rinsed with diethyl ether and a small amount of water. The filtrate was extracted several times with diethyl ether. The organic layers were combined, washed with water and brine, dried over MgSO4, and concentrated in vacuo to give 21.8 g (78%) of the desired 3-(4-chloro-3-ethylphenoxy)-1-nitrobenzene product as a dark orange oil, which was greater than 90% pure by reverse phase HPLC analysis. HRMS calcd. for C14H12ClNO3: 295.0849 [M+NH4]+, found 295.0862. then cooled to room temperature The reaction mixture was filtered through celite then rinsed with diethyl ether The filtrate was extracted several times with diethyl ether washed with water and brine dried over MgSO4 concentrated in vacuo

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

Procedure: A solution of N-(3-bromophenyl)-N-[2-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-3,3,3-trifluoropropyl]-3-(1,1,2,2-tetrafluoroethoxy)benzenemethanamine (75 mg, 0.124 mmol), cesium carbonate (81 mg, 0.248 mmol), 4chloro-3-ethylphenol (44 mg, 0.358 mmol), copper triflate benzene complex (6.24 mg, 10 mol % ), 1-naphthoic acid (43 mg, 0.248 mmol) in 2:1 toluene:dimethylacetamide (3.0 mL) was heated at 105° C. for 96 hours. The reaction mixture was filtered through celite, and the solvent was evaporated. The residue was purified by reverse phase chromatography eluting with 50-90% acetonitrile in water to afford 16.2 mg (23%) of the desired 3-[[3-(4-chloro-3-ethylphenoxy)phenyl]-[[3-(1,1,2,2-tetrafluoroethoxy)phenyl]methyl]amino]-1,1,1-trifluoro-2-propanol product as an orange oil. HRMS calcd. for C26H23ClF7NO3: 566.1332 [M+H]+, found: 566.1332. 1H NMR (CDCl3) δ1.18 (t, 3H), 2.69 (q, 2H), 3.50-3.61 (m, 1H), 3.87 (dd, 1H), 4.28-4.39 (m, 1H), 4.63 (s, 2H), 5.88 (tt, 1H), 6.32-6.40 (m, 2H), 6.48 (dd, 1H), 6.69 (dd, 1H), 6.87 (d, 1H), 7.0-7.34 (m, 5H). The reaction mixture was filtered through celite the solvent was evaporated The residue was purified by reverse phase chromatography eluting with 50-90% acetonitrile in water

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

Procedure: A solution of N-(3-bromophenyl)-N-[2-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-3,3,3-trifluoropropyl]-3-(1,1,2,2-tetrafluoroethoxy)benzenemethanamine (75 mg, 0.124 mmol), cesium carbonate (81 mg, 0.248 mmol), 4chloro-3-ethylphenol (44 mg, 0.358 mmol), copper triflate benzene complex (6.24 mg, 10 mol % ), 1-naphthoic acid (43 mg, 0.248 mmol) in 2:1 toluene:dimethylacetamide (3.0 mL) was heated at 105° C. for 96 hours. The reaction mixture was filtered through celite, and the solvent was evaporated. The residue was purified by reverse phase chromatography eluting with 50-90% acetonitrile in water to afford 16.2 mg (23%) of the desired 3-[[3-(4-chloro-3-ethylphenoxy)phenyl]-[[3-(1,1,2,2-tetrafluoroethoxy)phenyl]methyl]amino]-1,1,1-trifluoro-2-propanol product as an orange oil. HRMS calcd. for C26H23ClF7NO3: 566.1332 [M+H]+, found: 566.1332. 1H NMR (CDCl3) δ1.18 (t, 3H), 2.69 (q, 2H), 3.50-3.61 (m, 1H), 3.87 (dd, 1H), 4.28-4.39 (m, 1H), 4.63 (s, 2H), 5.88 (tt, 1H), 6.32-6.40 (m, 2H), 6.48 (dd, 1H), 6.69 (dd, 1H), 6.87 (d, 1H), 7.0-7.34 (m, 5H). The reaction mixture was filtered through celite the solvent was evaporated The residue was purified by reverse phase chromatography eluting with 50-90% acetonitrile in water

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

Procedure: A solution of N-(3-bromophenyl)-N-[2-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-3,3,3-trifluoropropyl]-3-(1,1,2,2-tetrafluoroethoxy)benzenemethanamine (75 mg, 0.124 mmol), cesium carbonate (81 mg, 0.248 mmol), 4-chloro-3-ethylphenol (44 mg, 0.358 mmol), copper triflate benzene complex (6.24 mg, 10 mol %), 1-naphthoic acid (43 mg, 0.248 mmol) in 2:1 toluene:dimethylacetamide (3.0 mL) was heated at 105° C. for 96 hours. The reaction mixture was filtered through celite, and the solvent was evaporated. The residue was purified by reverse phase chromatography eluting with 50-90% acetonitrile in water to afford 16.2 mg (23%) of the desired 3-[[3-(4-chloro-3-ethylphenoxy)phenyl]-[[3-(1,1,2,2-tetrafluoroethoxy)phenyl]methyl]amino]-1,1,1-trifluoro-2-propanol product as an orange oil. HRMS calcd. for C26H23ClF7NO3: 566.1332 [M+H]+, found: 566.1332. 1H NMR (CDCl3) δ 1.18 (t, 3H), 2.69 (q, 2H), 3.50-3.61 (m, 1H), 3.87 (dd, 1H), 4.28-4.39 (m, 1H), 4.63 (s, 2H), 5.88 (tt, 1H), 6.32-6.40 (m, 2H), 6.48 (dd, 1H), 6.69 (dd, 1H), 6.87 (d, 1H), 7.0-7.34 (m, 5H). The reaction mixture was filtered through celite the solvent was evaporated The residue was purified by reverse phase chromatography eluting with 50-90% acetonitrile in water

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

Procedure: A solution of N-(3-bromophenyl)-N-[2-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-3,3,3-trifluoropropyl]-3-(1,1,2,2-tetrafluoroethoxy)benzenemethanamine (75 mg, 0.124 mmol), cesium carbonate (81 mg, 0.248 mmol), 4-chloro-3-ethylphenol (44 mg, 0.358 mmol), copper triflate benzene complex (6.24 mg, 10 mol %), 1-naphthoic acid (43 mg, 0.248 mmol) in 2:1 toluene:dimethylacetamide (3.0 mL) was heated at 105° C. for 96 hours. The reaction mixture was filtered through celite, and the solvent was evaporated. The residue was purified by reverse phase chromatography eluting with 50-90% acetonitrile in water to afford 16.2 mg (23%) of the desired 3-[[3-(4-chloro-3-ethylphenoxy)phenyl]-[[3-(1,1,2,2-tetrafluoroethoxy)phenyl]methyl]amino]-1,1,1-trifluoro-2-propanol product as an orange oil. HRMS calcd. for C26H23ClF7NO3: 566.1332 [M+H]+, found: 566.1332. 1H NMR (CDCl3) δ1.18 (t, 3H), 2.69 (q, 2H), 3.50-3.61 (m, 1H), 3.87 (dd, 1H), 4.28-4.39 (m, 1H), 4.63 (s, 2H), 5.88 (tt, 1H), 6.32-6.40 (m, 2H), 6.48 (dd, 1H), 6.69 (dd, 1H), 6.87 (d, 1H), 7.0-7.34 (m, 5H). The reaction mixture was filtered through celite the solvent was evaporated The residue was purified by reverse phase chromatography eluting with 50-90% acetonitrile in water

Conditions: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of 1-fluoro-4-nitrobenzene (10 mmol) in DMF (20 mL) at rt, solid potassium carbonate (30 mmol) was added followed by addition of 4-chloro-3-ethylphenol (10 mmol) to the reaction mixture and heating to 80° C. until the reaction was complete as indicated by TLC or HPLC. After cooling to rt, the reaction mixture was poured into EtOAc (100 mL), washed with H2O (2×50 mL) and brine (50 mL), and dried over sodium sulfate. The solvent was removed in vacuuo to afford the desired 4-(4-chloro-3-ethylphenoxy)-1-nitrobenzene. The crude product was used for further transformation. After cooling to rt washed with H2O (2×50 mL) and brine (50 mL) dried over sodium sulfate The solvent was removed in vacuuo

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

Procedure: In a 1-liter four-necked glass flask is prepared a solution mixture of 100 g of 4-chloro-3-ethylphenol and 200 g of monochlorobenzene. While the mixture is maintained at a temperature of 25°-30° C., 80 g of chlorosulfonic acid is added dropwise. After the mixture is maintained at the same temperature for 3 hours, the reaction mass of 5-chloro-4-ethyl-2-hydroxybenzenesulfonic acid is obtained and 75.1 g of acetic acid is added to the reaction mass. After 1.33 g of aluminium chloride and 0.67 g of sulfur chloride are added, 110 g of sulfuryl chloride is added dropwise. After the addition is completed, the temperature of the mixture is raised to 35° C. and the mixture is maintained at the temperature for 5 hours. In a 2-liter flask is charged 960 g of water, and the reaction mass is poured into the flask under stirring. The reaction mixture is separated into an aqueous layer and an oil layer, and the lower oil layer is removed to obtain aqueous solution of 3,5-dichloro-4-ethyl-2-hydroxybenzenesulfonic acid. After cooling to 20° C., 184 g of a 70% nitric acid solution is added dropwise, maintaining the temperature at 20°-25° C. After the addition is completed, the reaction mixture is heated to 45° C. and maintained at the temperature for 4 hours. The reaction mixture is cooled to 20° C. and filtered. The product is washed with water and dried to give 2,4-dichloro-3-ethyl-6-nitrophenol. In a 1-liter four-necked glass flask is prepared is added dropwise After the mixture is maintained at the same temperature for 3 hours