1,2-dichloro-3-iodobenzene

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: A mixture of 2,3-dichloroiodobenzene (5.00 g), copper(I) iodide (69.8 mg), triphenylphosphine (240 mg), tris(dibenzylideneacetone)dipalladium(0) chloroform adduct (378 mg), propargyl alcohol (1.19 ml), diisopropylethylamine (12.8 ml) and tetrahydrofuran (100 ml) was stirred at room temperature for 25 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=100:0-80:20) to give the object product (3.12 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=100:0-80:20)

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

Procedure: A mixture of 2,3-dichloroiodobenzene (5.00 g), copper(I) iodide (69.8 mg), triphenylphosphine (240 mg), tris(dibenzylideneacetone)dipalladium(0) chloroform adduct (378 mg), propargyl alcohol (1.19 ml), diisopropylethylamine (12.8 ml) and tetrahydrofuran (100 ml) was stirred at room temperature for 25 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=100:0-80:20) to give the object product (3.12 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=100:0-80:20)

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

Procedure: Prepared from 6-amino-4,4-diethyl-1-methyl-1,4-dihydro-2H-3,1-benzoxazin-2-one and 1,2-dichloro-3-iodobenzene according to the coupling procedure described in example 2. 1H NMR (DMSO-d6): δ 7.83 (s, 1H), 7.17 (m, 2H), 7.06 (d, J=8.7 Hz, 1H), 7.03 (m, 2H), 6.94 (dd, J=8.3, 1.4 Hz, 1H), 3.28 (s, 3H), 1.97 (m, 4H), 0.81 (t, J=7.3 Hz, 6H); MS (ESI) m/z [M+H]+(379/381/383); Anal. calcd for C19H20Cl2N2O2: C, 60.17; H, 5.32; N, 7.39. Found: C, 59.80; H, 4.96; N, 7.13.

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: 1,2-Dichloro-3-iodobenzene (4.39 g, 16.1 mmol), benzylacetylene (1.96 g, 16.9 mmol), copper(I) iodide (26 mg, 0.14 mmol) and bistriphenylphosphinepalladium(II)chloride (113 mg, 0.16 mmol) were combined in triethylamine (100 mL) and heated at reflux for 2 hours. The reaction was allowed to cool to room temperature and then was partitioned between saturated sodium chloride and diethylether. The organic phase was dried with sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure. The residue was purified on silica gel (eluting with hexane) to provide the title compound. MS (DCI/NH3) m/z 278 (M+NH4)+; 1H NMR (CDCl3) δ 3.90 (s, 2H), 7.13 (t, 1H), 7.2-7.5 (m, 7H). heated at reflux for 2 hours was partitioned between saturated sodium chloride and diethylether The organic phase was dried with sodium sulfate filtered the filtrate was concentrated under reduced pressure The residue was purified on silica gel (eluting with hexane)

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

Procedure: 1,2-Dichloro-3-iodobenzene (4.95 g, 18.1 mmol), trimethylsilylacetylene (2 g, 20 mmol), bis(triphenylphosphine)palladium(II)chloride (245 mg, 0.35 mmol), and copper(I)iodide (45 mg, 0.24 mmol) were combined in triethylamine (120 mL) and heated at reflux for 45 minutes. The mixture was allowed to cool to room temperature and was then partitioned between diethyl ether and saturated sodium chloride. The organic phase was dried with sodium sulfate, filtered through celite, and the filtrate was concentrated under reduced pressure. The residue was taken directly on to the next step. heated at reflux for 45 minutes was then partitioned between diethyl ether and saturated sodium chloride The organic phase was dried with sodium sulfate filtered through celite the filtrate was concentrated under reduced pressure