2-chloro-1-iodo-4-(trifluoromethyl)benzene

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

Procedure: A mixture of 3-chloro-4-iodobenzotrifluoride (5.00 g), copper(I) iodide (62.1 mg), triphenylphosphine (214 mg), tris(dibenzylideneacetone)dipalladium(0) chloroform adduct (337 mg), propargyl alcohol (1.06 ml), diisopropylethylamine (11.4 ml) and tetrahydrofuran (100 ml) was stirred at room temperature for 17 hr. The reaction mixture was added to brine, and the mixture was extracted with ethyl acetate, washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=99:1-80:20) to give the object product (3.05 g) as a brown solid. the mixture was extracted with ethyl acetate washed with saturated brine dried over anhydrous magnesium sulfate The solvent was evaporated under reduced pressure The residue was purified by silica gel column chromatography (hexane:ethyl acetate=99:1-80:20)

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

Procedure: A mixture of 3-chloro-4-iodobenzotrifluoride (5.00 g), copper(I) iodide (62.1 mg), triphenylphosphine (214 mg), tris(dibenzylideneacetone)dipalladium(0) chloroform adduct (337 mg), propargyl alcohol (1.06 ml), diisopropylethylamine (11.4 ml) and tetrahydrofuran (100 ml) was stirred at room temperature for 17 hr. The reaction mixture was added to brine, and the mixture was extracted with ethyl acetate, washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=99:1-80:20) to give the object product (3.05 g) as a brown solid. the mixture was extracted with ethyl acetate washed with saturated brine dried over anhydrous magnesium sulfate The solvent was evaporated under reduced pressure The residue was purified by silica gel column chromatography (hexane:ethyl acetate=99:1-80:20)

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 0.5 g (1.6 mmol) of 3-chloro-4-iodobenzotrifluoride 0.7 g (3.8 mmol), N-Boc-piperazine, 41 mg (0.04 mmol) Tris(dibenzylideneacetone)dipalladium chloroform complex, 0.44 g (4.43 mmol) sodium-t-butoxide and 48 mg (0.16 mmol) tri-o-tolylphosphine in 6 ml dioxane was heated overnight at 100° C. The solution was allowed to cool to room temperature, taken up in ether (30 ml) and washed with brine (25 ml). The organic layer was dried over Na2SO4, filtered and the solvent was removed in vacuo. The crude oil was chromatographed over on silica gel: Eluent: Heptane-AcOEt 0-10% over 15 min to provide the title compound (0.06 g, 10%) as a brown oil, MS (m/e): 365.1 (MH+, 100%). to cool to room temperature washed with brine (25 ml) The organic layer was dried over Na2SO4 filtered the solvent was removed in vacuo The crude oil was chromatographed over on silica gel

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

Procedure: The title compound was prepared according to the procedure described in Example-3 using 5-(2-chloro-6-fluorophenyl)-2-(4-ethynylphenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one (Intermediate-2, 0.100 g, 0.319 mmol), 2-chloro-1-iodo-4-(trifluoromethyl)benzene (0.147 g, 0.479 mmol), TBAF (0.201 g, 0.638 mmol), bis(triphenylphosphine)palladium(II) chloride (0.020 g, 0.028 mmol) and DMSO (3.0 mL). The obtained product was purified with column chromatography on silica gel eluting with 1.0% MeOH:DCM to afford 0.040 g of the desired product. 1H NMR (300 MHz, DMSO d6): δ 7.51 (d, J=8.7 Hz, 1H), 7.59 (d, J=7.8 Hz, 1H), 7.67-7.87 (m, 3H), 7.84 (t, J=8.4 Hz, 2H), 8.05 (d, J=8.4 Hz, 2H), 8.11 (s, 1H), 12.75 (br s, 1H). MS (m/z): 492.22 (M+). The title compound was prepared The obtained product was purified with column chromatography on silica gel eluting with 1.0% MeOH

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

Procedure: The title compound was prepared according to the procedure described in Example-3 using 5-(2-chloro-6-fluorophenyl)-2-(4-ethynylphenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one (Intermediate-2, 0.100 g, 0.319 mmol), 2-chloro-1-iodo-4-(trifluoromethyl)benzene (0.147 g, 0.479 mmol), TBAF (0.201 g, 0.638 mmol), bis(triphenylphosphine)palladium(II) chloride (0.020 g, 0.028 mmol) and DMSO (3.0 mL). The obtained product was purified with column chromatography on silica gel eluting with 1.0% MeOH:DCM to afford 0.040 g of the desired product. 1H NMR (300 MHz, DMSO d6): δ 7.51 (d, J=8.7 Hz, 1H), 7.59 (d, J=7.8 Hz, 1H), 7.67-7.87 (m, 3H), 7.84 (t, J=8.4 Hz, 2H), 8.05 (d, J=8.4 Hz, 2H), 8.11 (s, 1H), 12.75 (br s, 1H). MS (m/z): 492.22 (M+). The title compound was prepared The obtained product was purified with column chromatography on silica gel eluting with 1.0% MeOH

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

Procedure: The title compound was prepared according to the procedure described in step-5 and step-6 of Intermediate-2 by using 2-chloro-1-iodo-4-(trifluoromethyl)benzene (1.0 g, 3.2 mmol), ethynyl(trimethyl)silane (0.541 g, 5.5 mmol), copper iodide (0.027 g, 0.14 mmol), bis(triphenylphosphine) palladium(II) chloride (0.050 g, 0.072 mmol), TBAF (catalytic) and DCM to afford 0.525 g of desired product. 1H NMR (300 MHz, DMSO d6): δ 4.88 (s, 1H), 7.73 (d, J=8.4 Hz, 1H), 7.83 (d, J=7.8 Hz, 1H), 8.01 (s, 1H). The title compound was prepared

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

Procedure: The title compound was prepared according to the procedure described in step-5 and step-6 of Intermediate-2 by using 2-chloro-1-iodo-4-(trifluoromethyl)benzene (1.0 g, 3.2 mmol), ethynyl(trimethyl)silane (0.541 g, 5.5 mmol), copper iodide (0.027 g, 0.14 mmol), bis(triphenylphosphine) palladium(II) chloride (0.050 g, 0.072 mmol), TBAF (catalytic) and DCM to afford 0.525 g of desired product. 1H NMR (300 MHz, DMSO d6): δ 4.88 (s, 1H), 7.73 (d, J=8.4 Hz, 1H), 7.83 (d, J=7.8 Hz, 1H), 8.01 (s, 1H). The title compound was prepared

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

Procedure: The title compound was prepared according to the procedure described in Example-3 using 5-(2-chloro-6-fluorophenyl)-2-(4-ethynylphenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one (Intermediate-2, 0.100 g, 0.319 mmol), 2-chloro-1-iodo-4-(trifluoromethyl)benzene (0.147 g, 0.479 mmol), TBAF (0.201 g, 0.638 mmol), bis(triphenylphosphine)palladium(II) chloride (0.020 g, 0.028 mmol) and DMSO (3.0 mL). The obtained product was purified with column chromatography on silica gel eluting with 1.0% MeOH:DCM to afford 0.040 g of the desired product. 1H NMR (300 MHz, DMSO d6): δ 7.51 (d, J=8.7 Hz, 1H), 7.59 (d, J=7.8 Hz, 1H), 7.67-7.87 (m, 3H), 7.84 (t, J=8.4 Hz, 2H), 8.05 (d, J=8.4 Hz, 2H), 8.11 (s, 1H), 12.75 (br s, 1H). MS (m/z): 492.22 (M+). The title compound was prepared The obtained product was purified with column chromatography on silica gel eluting with 1.0% MeOH

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

Procedure: The title compound was prepared according to the procedure described in step-5 and step-6 of Intermediate-2 by using 2-chloro-1-iodo-4-(trifluoromethyl)benzene (1.0 g, 3.2 mmol), ethynyl(trimethyl)silane (0.541 g, 5.5 mmol), copper iodide (0.027 g, 0.14 mmol), bis(triphenylphosphine) palladium(II) chloride (0.050 g, 0.072 mmol), TBAF (catalytic) and DCM to afford 0.525 g of desired product. 1H NMR (300 MHz, DMSO d6): δ 4.88 (s, 1H), 7.73 (d, J=8.4 Hz, 1H), 7.83 (d, J=7.8 Hz, 1H), 8.01 (s, 1H). The title compound was prepared

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 0.5 g (1.6 mmol) of 3-chloro-4-iodobenzotrifluoride 0.7 g (3.8 mmol), N-Boc-piperazine, 41 mg (0.04 mmol) Tris(dibenzylideneacetone)dipalladium chloroform complex, 0.44 g (4.43 mmol) sodium-t-butoxide and 48 mg (0.16 mmol) tri-o-tolylphosphine in 6 ml dioxane was heated overnight at 100° C. The solution was allowed to cool to room temperature, taken up in ether (30 ml) and washed with brine (25 ml). The organic layer was dried over Na2SO4, filtered and the solvent was removed in vacuo. The crude oil was chromatographed over on silica gel: Eluent: Heptane-AcOEt 0-10% over 15 min to provide the title compound (0.06 g, 10%) as a brown oil, MS (m/e): 365.1 (MH+, 100%). to cool to room temperature washed with brine (25 ml) The organic layer was dried over Na2SO4 filtered the solvent was removed in vacuo The crude oil was chromatographed over on silica gel

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

Procedure: The title compound was prepared according to the procedure described in Example-3 using 5-(2-chloro-6-fluorophenyl)-2-(4-ethynylphenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one (Intermediate-2, 0.100 g, 0.319 mmol), 2-chloro-1-iodo-4-(trifluoromethyl)benzene (0.147 g, 0.479 mmol), TBAF (0.201 g, 0.638 mmol), bis(triphenylphosphine)palladium(II) chloride (0.020 g, 0.028 mmol) and DMSO (3.0 mL). The obtained product was purified with column chromatography on silica gel eluting with 1.0% MeOH:DCM to afford 0.040 g of the desired product. 1H NMR (300 MHz, DMSO d6): δ 7.51 (d, J=8.7 Hz, 1H), 7.59 (d, J=7.8 Hz, 1H), 7.67-7.87 (m, 3H), 7.84 (t, J=8.4 Hz, 2H), 8.05 (d, J=8.4 Hz, 2H), 8.11 (s, 1H), 12.75 (br s, 1H). MS (m/z): 492.22 (M+). The title compound was prepared The obtained product was purified with column chromatography on silica gel eluting with 1.0% MeOH

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

Procedure: The title compound was prepared according to the procedure described in step-5 and step-6 of Intermediate-2 by using 2-chloro-1-iodo-4-(trifluoromethyl)benzene (1.0 g, 3.2 mmol), ethynyl(trimethyl)silane (0.541 g, 5.5 mmol), copper iodide (0.027 g, 0.14 mmol), bis(triphenylphosphine) palladium(II) chloride (0.050 g, 0.072 mmol), TBAF (catalytic) and DCM to afford 0.525 g of desired product. 1H NMR (300 MHz, DMSO d6): δ 4.88 (s, 1H), 7.73 (d, J=8.4 Hz, 1H), 7.83 (d, J=7.8 Hz, 1H), 8.01 (s, 1H). The title compound was prepared