4-fluoro-2-methylbenzonitrile

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:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of tetrahydro-2H-thiopyran-4-carbonitrile (197 mg, 1.55 mmol) and THF (2.0 mL) is slowly added via syringe to a mixture of KHMDS (324 mg, 1.63 mmol) in THF (3.0 mL), stirring at −78° C. under nitrogen. The temperature is maintained at −78° C. for 30 min. before a mixture of 4-fluoro-2-methylbenzonitrile (222 mg, 1.64 mmol) in THF (1.0 mL) is slowly added to the vessel. The mixture is allowed to warm to room temperature and is stirred for 3 hours before being quenched with saturated aqueous NH4Cl. The solvent is removed by rotary evaporator and EtOAc (10.0 mL) and water (10.0 mL) are added. The phases are partitioned and the organic is washed with brine, dried with Na2SO4 and concentrated to yield the product (252 mg, 1.04 mmol, 67%). 1H NMR (400 MHz, DMSO-D6) δ ppm 1.84-1.95 (m, 2H), 2.03-2.14 (m, 2H), 2.51 (s, 3H), 2.57-2.72 (m, 4H), 7.23-7.31 (m, 1H), 7.41 (dd, J=9.96, 1.76 Hz, 1H), 7.89 (dd, J=8.59, 5.86 Hz, 1H). is slowly added to the vessel to warm to room temperature is stirred for 3 hours before being quenched with saturated aqueous NH4Cl The solvent is removed by rotary evaporator and EtOAc (10.0 mL) and water (10.0 mL) are added The phases are partitioned the organic is washed with brine dried with Na2SO4 concentrated

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

Procedure: A mixture of 4-fluoro-2-methylbenzonitrile (3) (2 g, 14.8 mmol), NBS (2.64 g, 15 mmol) and AIBN (100 mg) in CCl4 was refluxed under nitrogen for 2 hours. The reaction was cooled to room temperature. The solid was removed by filtration. The organic solution was concentrated to give crude product as an oil, which was used in the next step without further purification. 1H-NMR (400 MHz, CDCl3): δ 7.68 (dd, J=5.2, 8.4 Hz, 1H), 7.28 (dd, J=2.4, 8.8 Hz, 1H), 7.12 (m, 1H), 4.6 (s, 2H). was refluxed under nitrogen for 2 hours The solid was removed by filtration The organic solution was concentrated to give crude product as an oil, which was used in the next step without further purification

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

Procedure: A mixture of 2-bromo-5-fluorotoluene (2) (3.5 g, 18.5 mmol) and CuCN (2 g, 22 mmol) in DMF (100 mL) was refluxed for 24 hours. The reaction was diluted with water and extracted with hexane. The organics were dried over MgSO4 and the solvent removed to give product 3 (yield 60%). 1H-NMR (400 MHz, CDCl3): δ 7.60 (dd, J=5.6, 8.8 Hz, 1H), 6.93-7.06 (m, 2H), 2.55 (s, 3H). was refluxed for 24 hours extracted with hexane The organics were dried over MgSO4 the solvent removed

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

Procedure: Following the procedure of Example 69(b) {4-[3-(4-cyanophenoxy)-5-hydroxy-benzoylamino]cyclohexyl}carbamic acid tert-butyl ester 0.85 g (1.88 mmol) and 4-fluoro-2-methyl-benzonitrile (0.508 g, 3.76 mmol) were used to afford 0.76 g of the required product. 1H NMR (DMSO-d6): δ 1.20 (4H, m), 1.4 (9H, s), 1.8 (4H, m), 2.45 (3H, s), 3.15 (1H, m), 3.7 (1H, m), 6.72 (1H, d), 7.02 (1H, d), 7.2 (4H, m), 7.5 (2H, s), 7.8 (1H, d), 7.88 (2H, d), 8.34 (1H, d).

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

Procedure: Following the procedure of Example 69(b) {4-[3-(4-cyanophenoxy)-5-hydroxy-benzoylamino]cyclohexyl}carbamic acid tert-butyl ester 0.85 g (1.88 mmol) and 4-fluoro-2-methyl-benzonitrile (0.508 g, 3.76 mmol) were used to afford 0.76 g of the required product. 1H NMR (DMSO-d6): δ 1.20 (4H, m), 1.4 (9H, s), 1.8 (4H, m), 2.45 (3H, s), 3.15 (1H, m), 3.7 (1H, m), 6.72 (1H, d), 7.02 (1H, d), 7.2 (4H, m), 7.5 (2H, s), 7.8 (1H, d), 7.88 (2H, d), 8.34 (1H, d).

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

Procedure: A mixture of 4-fluoro-2-methylbenzonitrile (19.8 g, 150 mmol), KOH (24.3 g, 380 mmol) and water (300 mL) was heated to reflux for two days. The mixture was then acidified with concentrated HCl while cooling. The product was collected by filtration and the filter cake was washed with water. The solid material was dried standing in the hood for several days. There was obtained 20.8 g (92%) of 4-fluoro-2-methylbenzoic acid as a solid material. 1H NMR (300 MHz, DMSO-d6): 2.5 (s, 3H), 7.0-7.2 (m, 2H), 7.9 (t, 1H), 12.8 (b, 1H). was heated to reflux for two days while cooling The product was collected by filtration the filter cake was washed with water The solid material was dried standing in the hood for several days

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

Procedure: Compound C was prepared by refluxing a mixture of 4-fluoro-2-methylbenzonitrile (Compound B) (2 g, 14.8 mmol), N-bromosuccinimide (NBS) (2.64 g, 15 mmol) and azo-bis-isobutyronitrile (AIBN) (100 mg) in CCl4 under nitrogen for 2 hours. The reaction was cooled to room temperature. The solid was removed by filtration. The organic solution was concentrated to give the crude product the form of an oil, which was used in the next step without further purification. 1H-NMR (400 MHz, CDCl3): δ 7.68 (dd, J=5.2, 8.4 Hz, 1H), 7.28 (dd, J=2.4, 8.8 Hz, 1H), 7.12 (m, 1H), 4.6 (s, 2H). by refluxing The solid was removed by filtration The organic solution was concentrated

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

Procedure: Compound B was prepared by refluxing a mixture of 2-bromo-5-fluoro-toluene (Compound A) (3.5 g, 18.5 mmol) and CuCN (2 g, 22 mmol) in DMF (100 mL) for 24 hours. The reaction was diluted with water and extracted with hexane. The organics were dried over MgSO4 and the solvent removed to give product B (yield 60%). 1H-NMR (400 MHz, CDCl3): δ 7.60 (dd, J=5.6, 8.8 Hz, 1H), 6.93-7.06 (m, 2H), 2.55 (s, 3H). by refluxing extracted with hexane The organics were dried over MgSO4 the solvent removed