4-溴-2,6-二氯苯磺酰氯

反应条件: temp:65.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 170 mg (0.75 mmol) of 2,2,2-trifluoro-1-(1H-indol-3-ylmethyl)ethylamine and 243 mg (0.75 mmol) of 4-bromo-2,6-dichlorobenzensulfonyl chloride in 4 mL of pyridine was warmed at 65° C. The reaction was monitored by TLC indicating a new less polar product compared to amine. After 16 hours, the mixture was cooled and concentrated to afford a thick oily residue. The residue was diluted with 1 N aqueous hydrochloric acid until acidic and extracted with ethyl acetate. The combined organic layers were washed with 1 N aqueous HCl, saturated aqueous sodium bicarbonate solution, and brine, dried over sodium sulfate, decanted, and concentrated in vacuo. The crude material was purified by preparative TLC using EtOAc-hexanes (15:85). Material from the preparative TLC was isolated by suspending the silica gel in ethyl acetate followed by filtration. The filtrate was concentrated in vacuo to afford 112 mg (30%) of the title compounds as an off-white crystalline solid. the mixture was cooled concentrated to afford a thick oily residue extracted with ethyl acetate The combined organic layers were washed with 1 N aqueous HCl, saturated aqueous sodium bicarbonate solution, and brine dried over sodium sulfate decanted concentrated in vacuo The crude material was purified by preparative TLC Material from the preparative TLC was isolated followed by filtration The filtrate was concentrated in vacuo

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Prepared from 4-bromo-2,6-dichlorobenzenesulfonyl chloride (500 mg, 1.54 mmol) and 4-amino-1-methyl-1H-pyrazole (206 mg, 1.54 mmol) in pyridine (3 ml) according to the method of intermediate 1, to give the title compound as a white solid (496 mg, 1.29 mmol, 84%). δH (D-6 DMSO, 300K) 7.64 (2H, s), 7.45 (1H, s), 7.18 (1H, s), 7.01 (1H, s), 3.85 (3H, s). m/z (ES+, 70V) 385.9 (MH+).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Prepared from 4-bromo-2,6-dichlorobenzenesulfonyl chloride (500 mg, 1.54 mmol) and 4-amino-1,3-dimethyl-1H-pyrazole (228 mg, 1.55 mmol) in pyridine (3 ml) according to the method of intermediate 1, to give the title compound as a pale pink solid (501 mg, 1.26 mmol, 82%). δH (CDCl3, 300K) 7.65 (2H, s), 7.31 (1H, s), 6.77 (1H, s), 3.78 (3H, s), 2.04 (3H, s). m/z (ES+, 70V) 399.9 (MH+).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Prepared from 4-bromo-2,6-dichlorobenzenesulfonyl chloride (500 mg, 1.54 mmol) and 4-amino-1,5-dimethyl-1H-pyrazole (172 mg, 1.55 mmol) in pyridine (3 ml) according to the method of intermediate 1, to give the title compound as a cream solid (392 mg, 0.99 mmol, 64%). δH (D-6 DMSO, 300K) 9.91 (1H, s), 7.97 (2H, s), 3.64 (3H, s), 2.04 (3H, s). m/z (ES+, 70V) 399.9 (MH+).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Prepared from 4-bromo-2,6-dichlorobenzenesulfonyl chloride (0.35 g, 1.1 mmol) and 4-amino-1,3-dimethyl-5-isobutyl-1H-pyrazole (0.18 g, 1.1 mmol) in pyridine (4 ml) according to the method of intermediate 1, to give the title compound as an orange solid (118 mg, 0.26 mmol, 24%). δH (D-6 DMSO, 300K) 7.67 (2H, s), 6.69 (1H, s), 3.71 (3H, s), 2.45 (2H, d J 7.8 Hz), 1.90 (1H, m), 1.84 (3H, s), 0.91 (6H, d J 6.8 Hz). m/z (ES+, 70V) 456.0 (MH+).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Prepared from 4-bromo-2,6-dichlorobenzenesulfonyl chloride (0.68 g, 2.1 mmol) and 4-amino-1,5-dimethyl-3-isobutyl-1H-pyrazole (0.35 g, 2.1 mmol) in pyridine (5 ml) according to the method of intermediate 1, to give the title compound as a white solid (120 mg, 0.26 mmol, 12%). δH (D-6 DMSO, 300K) 7.65 (2H, s), 6.54 (1H, s), 3.70 (3H, s), 2.17 (3H, s), 1.96 (2H, d J 7.9 Hz), 1.74 (1H, m), 0.78 (6H, d J 6.6 Hz). m/z (ES+, 70V) 456.0 (MH+).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Prepared from 4-bromo-2,6-dichlorobenzenesulfonyl chloride (1.00 g, 3.1 mmol) and 2-methyl-3-aminopyridine (0.33 g, 3.1 mmol) in pyridine (6 ml) according to the method of intermediate 1, to give the title compound as a yellow solid (0.80 g, 2.0 mmol, 65%). 5H (CDCl3, 300K) 8.31 (1H, dd J 4.8 Hz 1.4 Hz), 7.65 (1H, d J 1.4 Hz), 7.64 (2H, s), 7.10 (2H, m), 2.52 (3H, s). m/z (ES+, 70V) 396.9 (MH+).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Prepared from 4-bromo-2,6-dichlorobenzenesulfonyl chloride (1.00 g, 3.19 mmol) and 4-amino-3,5-dimethylisoxazole (0.346 g, 3.1 mmol) in pyridine (6 ml) according to the method of intermediate 1, to give the title compound as a tan solid (606 mg, 1.51 mmol, 49%). δH (CDCl3, 300K) 7.70 (2H, s), 6.66 (1H, s), 2.23 (3H, s), 2.05 (3H, s). m/z (ES+, 70V) 400.9 (MH+).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Prepared from 4-bromo-2,6-dichlorobenzenesulfonyl chloride (5.0 g, 15.4 mmol) and 4-amino-1,3,5-trimethyl-1H-pyrazole (1.93 g, 15.4 mmol) in pyridine (35 ml) according to the method of intermediate 1, to give the title compound as an orange solid (5.64 g, 13.7 mmol, 89%). δH (D-6 DMSO, 300K) 9.75 (1H, s), 8.00 (2H, s), 3.57 (3H, s), 1.93 (3H, s), 1.72 (3H, s). m/z (ES+, 70V) 413.9 (MH+).