1-(3-chloro-2-fluorophenyl)ethanone

Conditions: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 1-(3-chloro-2-fluorophenyl)ethanone (5.60 g, 31.5 mmol) and (R)-2-methylpropane-2-sulfinamide (5.72 g, 47.2 mmol) in THF (50.0 mL) was added tetraethoxytitanium (16.50 mL, 79 mmol) and the overall bright yellow solution was heated at 70° C. for overnight. The reaction was slightly cooled with ice-water bath, then was added EtOAc (50 mL), NaHCO3 (10 mL), and brine (10 mL). The slurry was filtered through a short path of Celite and the wet cake was washed with EtOAc. The resulted bright yellow solution was phase separated, and the organic layer was concentrated to afford the title compound (8.3 g, 30.1 mmol, 96% yield) as a light yellow oil. This material was used in the next step without purification. MS m/z=276.0 [M+H]+. Calculated for C12H15ClFNOS: 275.77. The reaction was slightly cooled with ice-water bath The slurry was filtered through a short path of Celite the wet cake was washed with EtOAc separated the organic layer was concentrated

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 1-(3-Chloro-2-fluorophenyl)ethanone (20 mg, 0.116 mmol) and 3-(morpholinosulfonyl)benzohydrazide (33.1 mg, 0.116 mmol) were dissolved in methanol (4 mL) in the presence of acetic acid as a catalyst, and the reaction mixture was heated via microwave irradiation to 120° C. for 30 min. Following cooling, the solvent was removed by vacuum and the resulting crude material was purified by flash column chromatography (2% CH3OH/CH2Cl2) affording the title compound (22 mg) as a solid. 1H NMR (400 MHz, CDCl3): δ 9.43 (s, 1H), 8.37 (m, 1H), 8.16 (m, 1H), 7.87 (d, 1H, J=7.2 Hz), 7.65 (m, 1H), 7.41 (m, 1H), 7.10 (t, 1H, J=8.0 Hz), 3.71 (m, 4H), 2.95 (m, 4H), 2.38 (s, 3H). ESI-MS: 440.1 [M+H]+. Following cooling the solvent was removed by vacuum the resulting crude material was purified by flash column chromatography (2% CH3OH/CH2Cl2)

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 1-(3-Chloro-2-fluorophenyl)ethanone (20 mg, 0.116 mmol) and 3-(morpholinosulfonyl)benzohydrazide (33.1 mg, 0.116 mmol) were dissolved in methanol (4 mL) in the presence of acetic acid as a catalyst, and the reaction mixture was heated via microwave irradiation to 120° C. for 30 min. Following cooling, the solvent was removed by vacuum and the resulting crude material was purified by flash column chromatography (2% CH3OH/CH2Cl2) affording the title compound (22 mg) as a solid. 1H NMR (400 MHz, CDCl3): δ 9.43 (s, 1H), 8.37 (m, 1H), 8.16 (m, 1H), 7.87 (d, 1H, J=7.2 Hz), 7.65 (m, 1H), 7.41 (m, 1H), 7.10 (t, 1H, J=8.0 Hz), 3.71 (m, 4H), 2.95 (m, 4H), 2.38 (s, 3H). ESI-MS: 440.1 [M+H]+. Following cooling the solvent was removed by vacuum the resulting crude material was purified by flash column chromatography (2% CH3OH/CH2Cl2)

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 1-(3-Chloro-2-fluorophenyl)ethanone (20 mg, 0.116 mmol) and 3-(morpholinosulfonyl)benzohydrazide (33.1 mg, 0.116 mmol) were dissolved in methanol (4 mL) in the presence of acetic acid as a catalyst, and the reaction mixture was heated via microwave irradiation to 120° C. for 30 min. Following cooling, the solvent was removed by vacuum and the resulting crude material was purified by flash column chromatography (2% CH3OH/CH2Cl2) affording the title compound (22 mg) as a solid. 1H NMR (400 MHz, CDCl3): δ 9.43 (s, 1H), 8.37 (m, 1H), 8.16 (m, 1H), 7.87 (d, 1H, J=7.2 Hz), 7.65 (m, 1H), 7.41 (m, 1H), 7.10 (t, 1H, J=8.0 Hz), 3.71 (m, 4H), 2.95 (m, 4H), 2.38 (s, 3H). ESI-MS: 440.1 [M+H]+. Following cooling the solvent was removed by vacuum the resulting crude material was purified by flash column chromatography (2% CH3OH/CH2Cl2)

Conditions: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 1-(3-chloro-2-fluorophenyl)ethanone (5.60 g, 31.5 mmol) and (R)-2-methylpropane-2-sulfinamide (5.72 g, 47.2 mmol) in THF (50.0 mL) was added tetraethoxytitanium (16.50 mL, 79 mmol) and the overall bright yellow solution was heated at 70° C. for overnight. The reaction was slightly cooled with ice-water bath, then was added EtOAc (50 mL), NaHCO3 (10 mL), and brine (10 mL). The slurry was filtered through a short path of Celite and the wet cake was washed with EtOAc. The resulted bright yellow solution was phase separated, and the organic layer was concentrated to afford the title compound (8.3 g, 30.1 mmol, 96% yield) as a light yellow oil. This material was used in the next step without purification. MS m/z=276.0 [M+H]+. Calculated for C12H15ClFNOS: 275.77. The reaction was slightly cooled with ice-water bath The slurry was filtered through a short path of Celite the wet cake was washed with EtOAc separated the organic layer was concentrated

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 1-(3-Chloro-2-fluorophenyl)ethanone (20 mg, 0.116 mmol) and 3-(morpholinosulfonyl)benzohydrazide (33.1 mg, 0.116 mmol) were dissolved in methanol (4 mL) in the presence of acetic acid as a catalyst, and the reaction mixture was heated via microwave irradiation to 120° C. for 30 min. Following cooling, the solvent was removed by vacuum and the resulting crude material was purified by flash column chromatography (2% CH3OH/CH2Cl2) affording the title compound (22 mg) as a solid. 1H NMR (400 MHz, CDCl3): δ 9.43 (s, 1H), 8.37 (m, 1H), 8.16 (m, 1H), 7.87 (d, 1H, J=7.2 Hz), 7.65 (m, 1H), 7.41 (m, 1H), 7.10 (t, 1H, J=8.0 Hz), 3.71 (m, 4H), 2.95 (m, 4H), 2.38 (s, 3H). ESI-MS: 440.1 [M+H]+. Following cooling the solvent was removed by vacuum the resulting crude material was purified by flash column chromatography (2% CH3OH/CH2Cl2)