3,4,5-trifluoroaniline

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: Under ice-cooling, 11.5 g of sodium triacetoxyborohydride was added in small portions to a solution of 4.0 g of 3,4,5-trifluoroaniline and 3.6 ml cyclopentanone in 150 ml dichloroethane and 3.1 ml acetic acid, and, after rising to room temperature, stirred for 3.5 hours. Aqueous saturated sodium hydrogen carbonate was added thereto, followed by extraction with chloroform and subsequent drying over anhydrous sodium sulfate. After filtration, the solvent was evaporated under a reduced pressure, and the resulting residue was purified by silica gel column chromatography to obtain 5.4 g of N-cyclopentyl-3,4,5-trifluoroaniline. Under ice-cooling after rising to room temperature followed by extraction with chloroform subsequent drying over anhydrous sodium sulfate After filtration the solvent was evaporated under a reduced pressure the resulting residue was purified by silica gel column chromatography

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

Procedure: Under ice-cooling, 11.5 g of sodium triacetoxyborohydride was added in small portions to a solution of 4.0 g of 3,4,5-trifluoroaniline and 3.6 ml cyclopentanone in 150 ml dichloroethane and 3.1 ml acetic acid, and, after rising to room temperature, stirred for 3.5 hours. Aqueous saturated sodium hydrogen carbonate was added thereto, followed by extraction with chloroform and subsequent drying over anhydrous sodium sulfate. After filtration, the solvent was evaporated under a reduced pressure, and the resulting residue was purified by silica gel column chromatography to obtain 5.4 g of N-cyclopentyl-3,4,5-trifluoroaniline. Under ice-cooling after rising to room temperature followed by extraction with chloroform subsequent drying over anhydrous sodium sulfate After filtration the solvent was evaporated under a reduced pressure the resulting residue was purified by silica gel column chromatography

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

Procedure: 3,4,5-trifluoro-2-iodoaniline was prepared according to method D Step I with iodine (0.621 g; 2.45 mmol), silver sulphate (0.763 g; 2.45 mmol) and 3,4,5-trifluoroaniline (0.360 g; 2.45 mmol) in ethanol (5 mL). The crude residue was purified by flash chromatography on silica gel (eluent 2 to 40% ethyl acetate in heptane) to yield 0.279 g (42%) of 3,4,5-trifluoro-2-iodoaniline as a white solid. 3,4,5-trifluoro-2-iodoaniline was prepared The crude residue was purified by flash chromatography on silica gel (eluent 2 to 40% ethyl acetate in heptane)

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

Procedure: The title compound was prepared by using procedures analogous to those described for the synthesis of Intermediate I, using 3,4,5-trifluoroaniline and ethyl 6-bromoimidazo[1,2-a]pyridine-2-carboxylate as starting materials.

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

Procedure: The title compound was prepared by using procedures analogous to those described for the synthesis of Intermediate I, using 3,4,5-trifluoroaniline and ethyl 6-bromoimidazo[1,2-a]pyridine-2-carboxylate as starting materials.

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

Procedure: The product is prepared according to the procedure described in example 68, using 200 mg of sodium [1-methyl-4-(morpholin-4-yl)-6-oxo-1,6-dihydropyrimidin-2-yl]acetate, 214 mg of 3,4,5-trifluoroaniline, and 180 mg of N-[3-(dimethylamino)propyl]-N′-ethylcarbodiimide hydrochloride in a mixture of 0.12 ml of pyridine and 2.5 ml of N,N-dimethylformamide. 72 mg of 2-(1-methyl-4-morpholin-4-yl-6-oxo-1,6-dihydropyrimidin-2-yl)-N-(3,4,5-trifluorophenyl)acetamide are obtained in the form of a cream solid, the characteristics of which are the following: The product is prepared

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

Procedure: The product is prepared according to the procedure described in example 68, using 200 mg of sodium [1-methyl-4-(morpholin-4-yl)-6-oxo-1,6-dihydropyrimidin-2-yl]acetate, 214 mg of 3,4,5-trifluoroaniline, and 180 mg of N-[3-(dimethylamino)propyl]-N′-ethylcarbodiimide hydrochloride in a mixture of 0.12 ml of pyridine and 2.5 ml of N,N-dimethylformamide. 72 mg of 2-(1-methyl-4-morpholin-4-yl-6-oxo-1,6-dihydropyrimidin-2-yl)-N-(3,4,5-trifluorophenyl)acetamide are obtained in the form of a cream solid, the characteristics of which are the following: The product is prepared

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

Procedure: The product is prepared according to the procedure described in Example 5, using 200 mg of sodium [4-(morpholin-4-yl)-6-oxo-1,6-dihydropyrimidin-2-yl]acetate prepared in stage 2 of Example 1 and 113 mg of 3,4,5-trifluoroaniline in place of the 2,4-difluoroaniline. 33 mg of 2-[4-(morpholin-4-yl)-6-oxo-1,6-dihydropyrimidin-2-yl]-N-(3,4,5-trifluorophenyl)acetamide are obtained, the characteristics of which are the following: The product is prepared

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

Procedure: To a mixture of 3,4,5-trifluoroaniline (3.70 g, 25.1 mmol), tetrahydro-4H-pyran-4-one (2.52 g, 25.1 mmol), and benzoic acid (3.07 g, 25.1 mmol), was added sodium NaBH4 (0.95 g, 25.1 mmol), the whole mixture was stirred at room temperature for 1.5 h. After quenching with the reaction mixture with 1 M aq. NaOH under cooling with ice, the whole mixture was extracted with Et2O. The extract was washed with brine, dried over anhydrous Na2SO4, filtered, and concentrated in vacuo. Flash chromatography of the residue (hexane:EtOAc=3:2) gave 4-(3,4,5-trifluorophenyl)aminotetrahydropyran (2.40 g, 41%) as a white powder. After quenching with the reaction mixture with 1 M aq. NaOH under cooling with ice the whole mixture was extracted with Et2O The extract was washed with brine dried over anhydrous Na2SO4 filtered concentrated in vacuo

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

Procedure: To an ice-cooled solution of 3,4,5-trifluoroaniline (2.00 g; 13.6 mmol) in 50% tetrafluoroboric acid (5.0 ml) was added dropwise, with stirring, a solution of sodium nitrite (1.04 g; 15.1 mmol) in water (1.5 ml). After a further 15 minutes at 0° C., the precipitated solid was filtered off and washed with cold diethyl ether. After drying under reduced pressure, 2.91 g (11.8 mmol; 87% of theory) of the title compound were obtained in the form of a colorless powder. was added dropwise the precipitated solid was filtered off washed with cold diethyl ether After drying under reduced pressure, 2.91 g (11.8 mmol; 87% of theory) of the title compound were obtained in the form of a colorless powder