4-bromo-2-chloro-1-fluorobenzene

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:

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

Procedure: Prepared from 6-bromo-4,4-dimethyl-1,4-dihydro-benzo[d][1,3]oxazin-2-one and 1-bromo-3-chloro-4-fluorobenzene according to Procedure A. White solid: mp 211-212° C.; 1H-NMR (DMSO-d6) δ10.4 (s, 1H), 7.92 (dd, 1H, J=7.13, 2.19 Hz), 7.71-7.66 (m, 1H), 7.60-7.57 (m, 2H), 7.49 (t, 1H, J=8.95 Hz), 6.96 (d, 1H, J=8.01 Hz), 1.67 (s, 6H); MS (EI) m/z 305 ([M+H]+, 20%); Anal. Calc. For C16H13ClFNO2: C, 62.86, H, 4.29, N, 4.58. Found: C, 62.52, H, 4.45, N, 4.42.

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

Procedure: Prepared following the procedure described in Intermediate 13, starting from 4-bromo-2-chloro-1-fluorobenzene, where the crude product was purified by column chromatography (PE: EtOAc=100:1) to afford Intermediate 17 (110 mg, yield 20.0%). Prepared was purified by column chromatography (PE: EtOAc=100:1)

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

Procedure: The title compound was prepared according to Example 93, starting with 4-(4-chlorophenyl)-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone (described in Example 99) in place of 4-(4-fluorophenyl)-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone and substituting 1-bromo-3-chloro-4-fluorobenzene in place of 4-bromothioanisole (yield: 330 mg, 58.8%). mp 205° C. 1H NMR (300 MHz, CDCl3) δ 3.10 (s, 3H), 7.17 (d, J=9 Hz, 2H), 7.23-7.31 (m, 1H), 7.28 (d, J=9 Hz, 2H), 7.41 (d, J=9 Hz, 2H), 7.65 (ddd, J=9 Hz, 3 Hz, 1.5 Hz, 1H), 7.85 (dd, J=9 Hz, 3 Hz, 1H), 7.93 (d, J=9 Hz, 2H), 8.01 (s, 1H). MS (DCI/NH3) m/z 489 (M+H)+, 508 (M+NH4)+. Anal. calc. for C23H15Cl2N2O3S: C,56.44; H, 3.17; N, 5.73. Found: C, 56.37; H, 3.19; N, 5.64.

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

Procedure: A mixture of (3,4-dihydro-4-isopropyl-2-oxoquinoxalin-6-yl)boronic acid (2.4 g, 10 mmol), 4-bromo-2-chlorofluorobenzene (2 g, 10 mmol), potassium carbonate (4 g, 30 mmol), and tetrakis(triphenylphosphine)palladium(0) (0.46 g, 0.4 mmol) in dimethoxyethane (100 ml), ethanol (25 ml) and water (25 mol) was heated to reflux for 6 hrs. After cooling to room temperature the mixture was diluted with water and extracted with ethyl acetate (3×). The combined organic layers were washed with water, then brine, dried (MgSO4) and evaporated to obtain crude product (2.9 g, 91%). Recrystallization from EtOAc/hexane afforded the title compound, mp 208-213° C.: 1H-NMR (DMSO-d6) δ 1.16 (d, J=6.59 Hz, 6H), 3.56 (s, 2H), 4.22 (septet, J=6.59 Hz, 1H), 6.86 (d, J=7.91 Hz, 1H), 6.96 (dd, J=7.91, 1.76 Hz, 1H), 7.01 (d, J=1.76 Hz, 1H), 7.43 (t, J=9.01 Hz, 1H), 7.61 (m, H), 7.82 (dd, J=7.14, 2.31 Hz, 1H), 10.47 (s, 1H). MS (EI) m/z 318 [M]++1 chlorine. was heated to reflux for 6 hrs extracted with ethyl acetate (3×) The combined organic layers were washed with water brine, dried (MgSO4) evaporated to obtain crude product (2.9 g, 91%) Recrystallization from EtOAc/hexane

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

Procedure: A mixture of (3,4-dihydro-4-isopropyl-2-oxoquinoxalin-6-yl)boronic acid (2.4 g, 10 mmol), 4-bromo-2-chlorofluorobenzene (2 g, 10 mmol), potassium carbonate (4 g, 30 mmol), and tetrakis(triphenylphosphine)palladium(0) (0.46 g, 0.4 mmol) in dimethoxyethane (100 ml), ethanol (25 ml) and water (25 mol) was heated to reflux for 6 hrs. After cooling to room temperature the mixture was diluted with water and extracted with ethyl acetate (3×). The combined organic layers were washed with water, then brine, dried (MgSO4) and evaporated to obtain crude product (2.9 g, 91%). Recrystallization from EtOAc/hexane afforded the title compound, mp 208-213° C.: 1H-NMR (DMSO-d6) δ 1.16 (d, J=6.59 Hz, 6H), 3.56 (s, 2H), 4.22 (septet, J=6.59 Hz, 1H), 6.86 (d, J=7.91 Hz, 1H), 6.96 (dd, J=7.91, 1.76 Hz, 1H), 7.01 (d, J=1.76 Hz, 1H), 7.43 (t, J=9.01 Hz, 1H), 7.61 (m, H), 7.82 (dd, J=7.14, 2.31 Hz, 1H), 10.47 (s, 1H). MS (EI) m/z 318 [M]++1 chlorine. was heated to reflux for 6 hrs extracted with ethyl acetate (3×) The combined organic layers were washed with water brine, dried (MgSO4) evaporated to obtain crude product (2.9 g, 91%) Recrystallization from EtOAc/hexane

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

Procedure: A solution of 3-chloro-4-fluoro-bromobenzene (0.4 cm3, 0.66 g, 3.1 mmol), and tetrakis(triphenylphosphine)palladium(0) (0.2 g) in ethylene glycol dimethyl ether (20 cm3) was stirred under N2 for 20 minutes. To this mixture was then added (spiro[cyclopentane-1,3′-[3H]indol]-2′(1′H)-one-5-yl)boronic acid (1.0 g, 4.7 mmol) and sodium carbonate (1.0 g, 9.4 mmol) in water (5 cm3). The solution was brought to reflux for 18 hours and then cooled to room temperature, poured into 2N NaOH and extracted with EtOAc (×3). The combined extracts were washed with water, brine, dried (MgSO4), and evaporated. The residue was purified by column chromatography (SiO2, EtOAc, hexane) to afford the title compound (0.65 g, 66%) as a pale-yellow solid. mp: 202-204° C., 1H NMR (DMSO-d6) δ 10.4 (s, 1H), 7.9 (dd, 1H, J=2.3, 4.9 Hz), 7.7-7.6 (m, 1H), 7.6 (d, 1H, J=1.5 Hz), 7.5 (s, 1H), 7.4 (d, 1H, J=1.8 Hz), 6.9 (d, 1H, J=8.0 Hz), 2.0-1.9 (m, 8H); MS [M−H]−=314. to reflux for 18 hours extracted with EtOAc (×3) The combined extracts were washed with water, brine dried (MgSO4) evaporated The residue was purified by column chromatography (SiO2, EtOAc, hexane)