1-(3,5-dichlorophenyl)-2,2,2-trifluoroethanol

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 1-(1-Bromo-2,2,2-trifluoroethyl)-3,5-dichlorobenzene (AI1). To a stirred solution of 1-(3,5-dichlorophenyl)-2,2,2-trifluoroethanol (4.0 g, 16.3 mmol) in CH2Cl2 (50 mL), were added NBS (2.9 g, 16.3 mmol) and triphenyl phosphite (5.06 g, 16.3 mmol), and the resultant reaction mixture was heated at reflux for 18 h. After the reaction was deemed complete by TLC, the reaction mixture was cooled to 25° C. and was concentrated under reduced pressure. Purification by flash column chromatography (SiO2, 100-200 mesh; eluting with 100% pentane) afforded the title compound as a liquid (2.0 g, 40%): 1H NMR (400 MHz, CDCl3) δ 7.41 (s, 3H), 5.00 (m, 1H); EIMS m/z 306 ([M]+). the resultant reaction mixture was heated at reflux for 18 h was concentrated under reduced pressure Purification by flash column chromatography (SiO2, 100-200 mesh; eluting with 100% pentane)

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of 1-(3,5-dichlorophenyl)-2,2,2-trifluoroethanol (4.0 g, 16.3 mmol) in CH2Cl2 (50 mL), were added N-bromosuccinimide (NBS; 2.9 g, 16.3 mmol) and triphenyl phosphite (5.06 g, 16.3 mmol), and the resultant reaction mixture was heated at reflux for 18 h. After the reaction was deemed complete by TLC, the reaction mixture was cooled to 25° C. and was concentrated under reduced pressure. Purification by flash column chromatography (SiO2, 100-200 mesh; eluting with 100% pentane) afforded the title compound as a liquid (2.0 g, 40%): 1H NMR (400 MHz, CDCl3) δ 7.41 (s, 3H), 5.00 (m, 1H); EIMS m/z 306 ([M]+). the resultant reaction mixture was heated at reflux for 18 h was concentrated under reduced pressure Purification by flash column chromatography (SiO2, 100-200 mesh; eluting with 100% pentane)

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of 3,5-dichlorobenzaldehyde (10 g, 57 mmol) in THF (250 mL) were added trifluoromethyltrimethylsilane (9.79 g, 69.2 mmol) and a catalytic amount of tetrabutylammonium fluoride (TBAF). The reaction mixture was stirred at 25° C. for 8 h. After the reaction was deemed complete by TLC, the reaction mixture was diluted with 3 N hydrochloric acid (HCl) and then was stirred for 16 h. The reaction mixture was diluted with H2O and was extracted with ethyl acetate (EtOAc; 3×). The combined organic extracts were washed with brine, dried over Na2SO4, and concentrated under reduced pressure to afford the title compound as a liquid (8.41 g, 60%). was stirred for 16 h was extracted with ethyl acetate (EtOAc; 3×) The combined organic extracts were washed with brine dried over Na2SO4 concentrated under reduced pressure

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of 1-(3,5-dichlorophenyl)-2,2,2-trifluoroethanone (procured from Rieke Metals, UK; 5.0 grams (g), 20.5 millimoles (mmol)) in MeOH (100 mL) at 0° C. were added sodium borohydride (NaBH4; 3.33 g, 92.5 mL) and 1 Normal (N) aqueous sodium hydroxide solution (NaOH; 10 mL). The reaction mixture was warmed to 25° C. and stirred for 2 hours (h). After the reaction was deemed complete by thin layer chromatography (TLC), saturated (satd) aqueous (aq) ammonium chloride (NH4Cl) solution was added to the reaction mixture, and the mixture was concentrated under reduced pressure. The residue was diluted with diethyl ether (Et2O) and washed with water (H2O; 3×50 mL). The organic layer was dried over sodium sulfate (Na2SO4) and concentrated under reduced pressure to afford the title compound as a liquid (4.0 g, 79%): 1H NMR (400 MHz, CDCl3) δ 7.41 (m, 3H), 5.00 (m, 2H), 2.74 (s, 1H); ESIMS m/z 242.97 ([M−H]−). was added to the reaction mixture the mixture was concentrated under reduced pressure The residue was diluted with diethyl ether (Et2O) washed with water (H2O; 3×50 mL) The organic layer was dried over sodium sulfate (Na2SO4) concentrated under reduced pressure

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of 1-(3,5-dichlorophenyl)-2,2,2-trifluoroethanol (4.0 g, 16.3 mmol) in dichloromethane (CH2Cl2; 50 mL), were added N-bromosuccinimide (NBS; 2.9 g, 16.3 mmol) and triphenyl phosphite (5.06 g, 16.3 mmol), and the resultant reaction mixture was heated at reflux for 18 h. After the reaction was deemed complete by TLC, the reaction mixture was cooled to 25° C. and was concentrated under reduced pressure. Purification by flash column chromatography (SiO2, 100-200 mesh; eluting with 100% pentane) afforded the title compound as a liquid (2.0 g, 40%): 1H NMR (400 MHz, CDCl3) δ 7.41 (s, 3H), 5.00 (m, 1H); EIMS m/z 306 ([M]+). the resultant reaction mixture was heated at reflux for 18 h was concentrated under reduced pressure Purification by flash column chromatography (SiO2, 100-200 mesh; eluting with 100% pentane)

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of 3,5-dichlorobenzaldehyde (10 g, 57 mmol) in tetrahydrofuran (THF; 250 mL) were added trifluoromethyltrimethylsilane (9.79 g, 69.2 mmol) and a catalytic amount of tetrabutylammonium fluoride (TBAF). The reaction mixture was stirred at 25° C. for 8 h. After the reaction was deemed complete by TLC, the reaction mixture was diluted with 3 N hydrochloric acid (HCl) and then was stirred for 16 h. The reaction mixture was diluted with H2O and was extracted with ethyl acetate (EtOAc; 3×). The combined organic extracts were washed with brine, dried over Na2SO4, and concentrated under reduced pressure to afford the title compound as a liquid (8.41 g, 60%). was stirred for 16 h was extracted with ethyl acetate (EtOAc; 3×) The combined organic extracts were washed with brine dried over Na2SO4 concentrated under reduced pressure

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of 1-(3,5-dichlorophenyl)-2,2,2-trifluoroethanone (procured from Rieke Metals, UK; 5.0 grams (g), 20.5 millimoles (mmol)) in methyl alcohol (CH3OH; 100 milliliters (mL)) at 0° C. were added sodium borohydride (NaBH4; 3.33 g, 92.5 mL) and 1 Normal (N) aqueous sodium hydroxide solution (NaOH; 10 mL). The reaction mixture was warmed to 25° C. and stirred for 2 hours (h). After the reaction was deemed complete by thin layer chromatography (TLC), saturated (satd) aqueous (aq) ammonium chloride (NH4Cl) solution was added to the reaction mixture, and the mixture was concentrated under reduced pressure. The residue was diluted with diethyl ether (Et2O) and washed with water (H2O; 3×50 mL). The organic layer was dried over sodium sulfate (Na2SO4) and concentrated under reduced pressure to afford the title compound as a liquid (4.0 g, 79%): 1H NMR (400 MHz, CDCl3) δ 7.41 (m, 3H), 5.00 (m, 2H), 2.74 (s, 1H); ESIMS m/z 242.97 ([M−H]−). was added to the reaction mixture the mixture was concentrated under reduced pressure The residue was diluted with diethyl ether (Et2O) washed with water (H2O; 3×50 mL) The organic layer was dried over sodium sulfate (Na2SO4) concentrated under reduced pressure

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of 1-(3,5-dichlorophenyl)-2,2,2-trifluoroethanol (4.0 g, 16.3 mmol) in dichloromethane (CH2Cl2; 50 mL), were added N-bromosuccinimide (NBS; 2.9 g, 16.3 mmol) and triphenyl phosphite (5.06 g, 16.3 mmol), and the resultant reaction mixture was heated at reflux for 18 h. After the reaction was deemed complete by TLC, the reaction mixture was cooled to 25° C. and was concentrated under reduced pressure. Purification by flash column chromatography (SiO2, 100-200 mesh; eluting with 100% pentane) afforded the title compound as a liquid (2.0 g, 40%): 1H NMR (400 MHz, CDCl3) δ 7.41 (s, 3H), 5.00 (m, 1H); EIMS m/z 306 ([M]+). the resultant reaction mixture was heated at reflux for 18 h was concentrated under reduced pressure Purification by flash column chromatography (SiO2, 100-200 mesh; eluting with 100% pentane)

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of 3,5-dichlorobenzaldehyde (10 g, 57 mmol) in tetrahydrofuran (THF; 250 mL) were added trifluoromethyltrimethylsilane (9.79 g, 69.2 mmol) and a catalytic amount of tetrabutylammonium fluoride (TBAF). The reaction mixture was stirred at 25° C. for 8 h. After the reaction was deemed complete by TLC, the reaction mixture was diluted with 3 N hydrochloric acid (HCl) and then was stirred for 16 h. The reaction mixture was diluted with H2O and was extracted with ethyl acetate (EtOAc; 3×). The combined organic extracts were washed with brine, dried over Na2SO4, and concentrated under reduced pressure to afford the title compound as a liquid (8.41 g, 60%). was stirred for 16 h was extracted with ethyl acetate (EtOAc; 3×) The combined organic extracts were washed with brine dried over Na2SO4 concentrated under reduced pressure

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of 1-(3,5-dichlorophenyl)-2,2,2-trifluoroethanone (procured from Rieke Metals, UK; 5.0 grams (g), 20.5 millimoles (mmol)) in methyl alcohol (CH3OH; 100 milliliters (mL)) at 0° C. were added sodium borohydride (NaBH4; 3.33 g, 92.5 mL) and 1 Normal (N) aqueous sodium hydroxide solution (NaOH; 10 mL). The reaction mixture was warmed to 25° C. and stirred for 2 hours (h). After the reaction was deemed complete by thin layer chromatography (TLC), saturated (satd) aqueous (aq) ammonium chloride (NH4Cl) solution was added to the reaction mixture, and the mixture was concentrated under reduced pressure. The residue was diluted with diethyl ether (Et2O) and washed with water (H2O; 3×50 mL). The organic layer was dried over sodium sulfate (Na2SO4) and concentrated under reduced pressure to afford the title compound as a liquid (4.0 g, 79%): 1H NMR (400 MHz, CDCl3) δ 7.41 (m, 3H), 5.00 (m, 2H), 2.74 (s, 1H); ESIMS m/z 242.97 ([M−H]−). was added to the reaction mixture the mixture was concentrated under reduced pressure The residue was diluted with diethyl ether (Et2O) washed with water (H2O; 3×50 mL) The organic layer was dried over sodium sulfate (Na2SO4) concentrated under reduced pressure

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of 1-(3,5-dichlorophenyl)-2,2,2-trifluoroethanol (4.0 g, 16.3 mmol) in CH2Cl2 (50 mL), were added N-bromosuccinimide (NBS; 2.9 g, 16.3 mmol) and triphenyl phosphite (5.06 g, 16.3 mmol), and the resultant reaction mixture was heated at reflux for 18 h. After the reaction was deemed complete by TLC, the reaction mixture was cooled to 25° C. and was concentrated under reduced pressure. Purification by flash column chromatography (SiO2, 100-200 mesh; eluting with 100% pentane) afforded the title compound as a liquid (2.0 g, 40%): 1H NMR (400 MHz, CDCl3) δ 7.41 (s, 3H), 5.00 (m, 1H); EIMS m/z 306 GMT). the resultant reaction mixture was heated at reflux for 18 h was concentrated under reduced pressure Purification by flash column chromatography (SiO2, 100-200 mesh; eluting with 100% pentane)

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of 3,5-dichlorobenzaldehyde (10 g, 57 mmol) in THF (250 mL) were added trifluoromethyltrimethylsilane (9.79 g, 69.2 mmol) and a catalytic amount of tetrabutylammonium fluoride (TBAF). The reaction mixture was stirred at 25° C. for 8 h. After the reaction was deemed complete by TLC, the reaction mixture was diluted with 3 N hydrochloric acid (HCl) and then was stirred for 16 h. The reaction mixture was diluted with water and was extracted with ethyl acetate (EtOAc; 3×). The combined organic extracts were washed with brine, dried over Na2SO4, and concentrated under reduced pressure to afford the title compound as a liquid (8.41 g, 60%). was stirred for 16 h was extracted with ethyl acetate (EtOAc; 3×) The combined organic extracts were washed with brine dried over Na2SO4 concentrated under reduced pressure