3-bromobut-3-en-1-ol

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Tert-butyl (2-chloro-5-cyano-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)carbamate (864 mg, 2.282 mmol), (2-dicyclohexylphosphino-2′,4′,6′-triisopropyl-1,1′-biphenyl)[2-(2-aminoethyl)phenyl]palladium(II) chloride (84 mg, 0.114 mmol), and potassium phosphate, dibasic (1192 mg, 6.85 mmol) were added to a 100 ml flask, and the flask was purged with N2. 3-bromobut-3-en-1-ol (0.226 mL, 2.282 mmol) and THF (12 mL) were added, followed by water (2.182 mL). The reaction was heated at 60° C. for 1 h. The reaction was cooled to room temperature and diluted with EtOAc. The organic layer was washed with water, then brine, dried over Na2SO4, filtered, and concentrated. The material was purified by flash column chromatography (0-50% EtOAc/Hex; 120 g column). Tert-butyl (2-chloro-5-cyano-3-(4-hydroxybut-1-en-2-yl)phenyl)carbamate (317 mg) was obtained as a colorless glass. the flask was purged with N2 The reaction was cooled to room temperature The organic layer was washed with water brine, dried over Na2SO4 filtered concentrated The material was purified by flash column chromatography (0-50% EtOAc/Hex; 120 g column)

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Tert-butyl (2-chloro-5-cyano-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)carbamate (864 mg, 2.282 mmol), (2-dicyclohexylphosphino-2′,4′,6′-triisopropyl-1,1′-biphenyl)[2-(2-aminoethyl)phenyl]palladium(II) chloride (84 mg, 0.114 mmol), and potassium phosphate, dibasic (1192 mg, 6.85 mmol) were added to a 100 ml flask, and the flask was purged with N2. 3-bromobut-3-en-1-ol (0.226 mL, 2.282 mmol) and THF (12 mL) were added, followed by water (2.182 mL). The reaction was heated at 60° C. for 1 h. The reaction was cooled to room temperature and diluted with EtOAc. The organic layer was washed with water, then brine, dried over Na2SO4, filtered, and concentrated. The material was purified by flash column chromatography (0-50% EtOAc/Hex; 120 g column). Tert-butyl (2-chloro-5-cyano-3-(4-hydroxybut-1-en-2-yl)phenyl)carbamate (317 mg) was obtained as a colorless glass. the flask was purged with N2 The reaction was cooled to room temperature The organic layer was washed with water brine, dried over Na2SO4 filtered concentrated The material was purified by flash column chromatography (0-50% EtOAc/Hex; 120 g column)

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

Procedure: The title compound was prepared in 8.7 g yield as a colourless oil, following an analogous procedure to that reported in WO2005058884, starting from 3-bromo-3-buten-1-ol (4 g), chloro(1,1-dimethylethyl)diphenylsilane (8.27 ml), imidazole (2.34 g) and N,N-dimethyl-4-pyridineamine (0.025 g). yield as a colourless oil

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

Procedure: The title compound was prepared in 8.7 g yield as a colourless oil, following an analogous procedure to that reported in WO2005058884, starting from 3-bromo-3-buten-1-ol (4 g), chloro(1,1-dimethylethyl)diphenylsilane (8.27 ml), imidazole (2.34 g) and N,N-dimethyl-4-pyridineamine (0.025 g). yield as a colourless oil

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

Procedure: To a solution of 3-bromobut-3-en-1-ol (ACROS, 15.18 g, 100.53 mmol) in DCM (300 mL) at room temperature was added imidazole (8.90 g, 130.69 mmol), 4-dimethylaminopyridine (2.456 g, 20.11 mmol) and tert-butyldimethylsilyl chloride (16.67 g, 110.58 mmol). The reaction mixture was stirred at room temperature for 3 hours, then filtered to remove solids and washed with brine. The organics were dried over magnesium sulfate, filtered and concentrated. Silica gel chromatography (0%-15% ethyl acetate/hexanes) afforded the title compound (24.67 g, 93%) as a colorless oil. filtered to remove solids washed with brine The organics were dried over magnesium sulfate filtered concentrated

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

Procedure: Palladium acetate (100 mg, 0.6 mmol) was added to a solution of 6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoline (8.0 g, 31 mmol) and 3-bromo-3-buten-1-ol (6.2 g, 41 mmol) in toluene (118 mL) and water (12 mL) followed by addition of 2-(dicyclohexylphosphino)-2′,6′-dimethoxy-1,1′-biphenyl (500 mg, 1 mmol). The mixture was stirred at 100° C. for 6 h. After cooling to RT, the mixture was diluted with EtOAc, washed with water and brine. The organic layers were dried over Na2SO4, filtered, and concentrated. The residue was purified by chromatography on silica gel with EtOAc in methylene chloride (0-50%) to afford the desired product. After cooling to RT washed with water and brine The organic layers were dried over Na2SO4 filtered concentrated The residue was purified by chromatography on silica gel with EtOAc in methylene chloride (0-50%)

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

Procedure: Palladium acetate (100 mg, 0.6 mmol) was added to a solution of 6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoline (8.0 g, 31 mmol) and 3-bromo-3-buten-1-ol (6.2 g, 41 mmol) in toluene (118 mL) and water (12 mL) followed by addition of 2-(dicyclohexylphosphino)-2′,6′-dimethoxy-1,1′-biphenyl (500 mg, 1 mmol). The mixture was stirred at 100° C. for 6 h. After cooling to RT, the mixture was diluted with EtOAc, washed with water and brine. The organic layers were dried over Na2SO4, filtered, and concentrated. The residue was purified by chromatography on silica gel with EtOAc in methylene chloride (0-50%) to afford the desired product. After cooling to RT washed with water and brine The organic layers were dried over Na2SO4 filtered concentrated The residue was purified by chromatography on silica gel with EtOAc in methylene chloride (0-50%)

Conditions: temp:0.00; pressure:0.00; stir:

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

Procedure: To a solution of 3-bromobut-3-en-1-ol (5.2 g, 34.4 mmol) in dichloromethane (69 mL) at rt was added tert-Butyldimethylsilyl trifluoromethanesulfonate (10 g. 37.9 mmol) and DIEA (7.22 mL, 41.3 mmol) and the mixture was stirred at rt for 30 min. The reaction mixture was partitioned between dichloromethane and water, and the crude product obtained from the dichloromethane layer was purified by chromatography eluting with 5-30% EtOAc/Hexanes to give the title compound as a colorless liquid (8.72 g, 95%). 1H NMR (400 MHz, CDCl3) δ 5.66 (1H, s), 5.48 (1H, s), 3.81 (2H, t, J=6.0 Hz), 2.64 (2H, t, J=6.0 Hz), 0.91 (9H, s), and 0.09 (6H, s). The reaction mixture was partitioned between dichloromethane and water the crude product obtained from the dichloromethane layer was purified by chromatography eluting with 5-30% EtOAc/Hexanes

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

Procedure: A solution of DME (20 mL) and 2M Na2CO3 (15 mL) containing 3-bromobut-3-en-1-ol (1.40 g, 7.66 mol), (3-chlorophenyl)boronic acid (2.3 g, 14.7 mmol) and Pd(PPh3)4 (0.4 g, 0.35 mmol) was refluxed under an argon atmosphere for 3 hours. The solution was concentrated (to remove excess DME) and partitioned between water and ethyl acetate. The organic phase was washed with 1N NaOH, water (2×) and brine. The solution was then dried over MgSO4, filtered and concentrated. The residue was purified by silica gel chromatography using a hexanes/ethyl acetate gradient to give the title compound. 1H NMR (500 MHz, CDCl3): δ 7.42 (s, 1H); 7.31-7.29 (m, 3H); 5.43 (s, 1H); 5.21 (s, 1H); 3.73 (t, J=6.5 Hz, 2H); 2.77 (t, J=6.3 Hz, 2H); 1.91 (s, 1H). LCMS1 2.95 min. (M-OH)=165. was refluxed under an argon atmosphere for 3 hours The solution was concentrated (to remove excess DME) partitioned between water and ethyl acetate The organic phase was washed with 1N NaOH, water (2×) and brine The solution was then dried over MgSO4 filtered concentrated The residue was purified by silica gel chromatography