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CAS No. : | 103291-07-2 | MDL No. : | MFCD01861130 |
Formula : | C7H6BrFO | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | SEVMQEIGENUPIE-UHFFFAOYSA-N |
M.W : | 205.02 | Pubchem ID : | 13604909 |
Synonyms : |
|
Num. heavy atoms : | 10 |
Num. arom. heavy atoms : | 6 |
Fraction Csp3 : | 0.14 |
Num. rotatable bonds : | 1 |
Num. H-bond acceptors : | 2.0 |
Num. H-bond donors : | 0.0 |
Molar Refractivity : | 40.59 |
TPSA : | 9.23 Ų |
GI absorption : | High |
BBB permeant : | Yes |
P-gp substrate : | No |
CYP1A2 inhibitor : | Yes |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | No |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -5.46 cm/s |
Log Po/w (iLOGP) : | 2.3 |
Log Po/w (XLOGP3) : | 2.94 |
Log Po/w (WLOGP) : | 3.02 |
Log Po/w (MLOGP) : | 2.99 |
Log Po/w (SILICOS-IT) : | 2.92 |
Consensus Log Po/w : | 2.83 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 1.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -3.34 |
Solubility : | 0.0934 mg/ml ; 0.000456 mol/l |
Class : | Soluble |
Log S (Ali) : | -2.8 |
Solubility : | 0.328 mg/ml ; 0.0016 mol/l |
Class : | Soluble |
Log S (SILICOS-IT) : | -3.66 |
Solubility : | 0.0446 mg/ml ; 0.000218 mol/l |
Class : | Soluble |
PAINS : | 0.0 alert |
Brenk : | 0.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 1.53 |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P280-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H332-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
86% | With boron tribromide In dichloromethane at 20℃; | To a stirred solution OF 4-BROMO-1-FLUORO-2-METHOXYBENZENE (1.00 g, 4.88 mmol) in anhydrous CH2CL2 (20 ml) was added dropwise in an ice bath BBR3 (1 M solution in CH2Cl2, 9.75 ml, 9. 75 mmol), and the mixture was stirred at room temperature overnight. The reaction was cooled in an ice bath and quenched by adding MEOH (1.0 ml) dropwise. The solvent was evaporated and the residue purified by flash chromatography eluting with ISOHEXANE/CH2CL2/MEOH (70: 20: 10) to leave 0.802 g (86percent) of the title compound: BH (400 MHz, CDCL3) 5.24 (1 H, s), 6.96 (2 H, m), 7.16 (1 H, DD, J7. 7,2. 0 HZ). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
35% | Stage #1: With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.666667 h; Stage #2: With Trimethyl borate In tetrahydrofuran; hexane at -78 - 20℃; for 18 h; Stage #3: With hydrogenchloride In tetrahydrofuran; hexane; water |
To a solution of 7B (2.7 g, 13.1 mmol) in THF (25 mL) at -78° C. was added n-BuLi (1.6 M in hexanes, 11.0 mL, 17.7 mmol). The mixture was stirred at -78° C. for 40 min before trimethyl borate (2.7 mL, 24.3 mmol) was added. The reaction was left stirring from -78° C. to rt over 18 h. It was quenched with 1.0 N HCl (40 mL), extracted with EtOAc, washed with brine and dried over Na2SO4. After evaporation of the solvent, the crude solid product was triturated with EtOAc/hexanes (1:4). After filtration, 7C (0.75 g, 35percent yield) was collected as a white solid. 1H NMR (400 MHz, Methanol-d4) δ ppm 3.86 (s, 3H) 7.03-7.45 (m, 3H). |
35% | Stage #1: With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.666667 h; Stage #2: With Trimethyl borate In tetrahydrofuran; hexane at -78 - 20℃; for 18 h; Stage #3: With hydrogenchloride; water In tetrahydrofuran; hexane |
To a solution of 69A (2.7 g, 13.1 mmol) in THF (25 mL) at -78° C. was added n-BuLi (1.6 M in hexanes, 11.0 mL, 17.7 mmol). The mixture was stirred at -78° C. for 40 min before trimethyl borate (2.7 mL, 24.3 mmol) was added. The reaction was left stirring from -78° C. to rt over 18 h. It was quenched with 1.0 N HCl (40 mL), extracted with EtOAc, washed with brine and dried over Na2SO4. After evaporation of the solvent, the crude solid product was triturated with EtOAc/hexanes (1:4). After filtration, 69B (0.75 g, 35percent yield) was collected as a white solid. 1H NMR (400 MHz, Methanol-d4) δ ppm 3.86 (s, 3 H) 7.03-7.45 (m, 3 H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 65 h; | Reference Example-13 Potassium carbonate (18.8 g, 136 mmol) and methyl iodide (19.3 g, 136 mmol) were added to a solution of 5-bromo-2-fluorophenol (13.0 g, 68.1 mmol) in DMF (120 mL), followed by stirring at room temperature for 65 hours. After the reaction was completed, water (150 mL) was added to the reaction solution, and the resultant product was extracted with ethyl acetate (100 mL*1, 50 mL*2). The organic layer was dried over anhydrous magnesium sulfate, and concentrated under reduced pressure, whereby a pale yellow oily crude product (29.0 g) was obtained. This was purified by silica gel column chromatography (hexane:ethyl acetate=10:1), whereby 5-bromo-2-fluoroanisole (14.2 g, yield: quantitative) was obtained as a colorless oily material. 1H-NMR (400 MHz, CDCl3): δ3.88 (s, 3H), 6.95 (dd, J=8.6 and 10.8 Hz, 1H), 7.02 (ddd, J=2.2, 4.2 and 8.6 Hz, 1H), 7.08 (dd, J=2.2 and 7.6 Hz, 1H). 19F-NMR (376 MHz, CDCl3): δ-137 (s, 1F). |
77% | With potassium carbonate In N,N-dimethyl-formamide at 20 - 40℃; for 2 h; | 100204] To a solution of 23 A (3.3 g, 17.3 mmol) and K2CO3 (4.78 g, 34.6 mmol) in DMF (20 mL) was added methyl iodide (1.46 niL, 23.4 mmol) at rt. The mixture was heated at 400C for 2.0 h. After cooling to rt, it was diluted with diethyl ether, washed with water and brine, dried over MgS O4. The crude residue was purified by flash column chromatography (EtOAc:hexanes = 1 : 6) to give 2.74 g(77percent) of 23B as a viscous oil. 1H NMR (400 MHz, CDCl3) δ ppm 3.89 (s, 3 H), 6.95 - 7.00 (m, 3 H). |
77% | With potassium carbonate In N,N-dimethyl-formamide at 20 - 40℃; | To a solution of 7A (3.3 g, 17.3 mmol) and K2CO3 (4.78 g, 34.6 mmol) in DMF (20 mL) was added methyl iodide (1.46 mL, 23.4 mmol) at rt. The mixture was heated at 40° C. for 2.0 h. After cooling to rt, it was diluted with diethyl ether, washed with water and brine, dried over MgSO4. The crude residue was purified by flash column chromatography (EtOAc:hexanes=1:6) to give 2.74 g (77percent) of 7B as a viscous oil. 1H NMR (400 MHz, CDCl3) δ ppm 3.89 (s, 3H), 6.95-7.00 (m, 3H). |
77% | With potassium carbonate In N,N-dimethyl-formamide at 40℃; for 2 h; | To a solution of 64A (3.3 g, 17.3 mmol) and K2CO3 (4.78 g, 34.6 mmol) in DMF (20 mL) was added methyl iodide (1.46 mL, 23.4 mmol) at rt. The mixture was heated at 40° C. for 2.0 h. After cooled to rt, it-was diluted with ether, washed with water and brine, dried over MgSO4. The crude residue was purified by flash column chromatography (EtOAc:hexanes=1:6) to give 2.74 g (77percent) of 69A as viscous oil. 1H NMR (400 MHz, CDCl3) δ ppm 3.89 (s, 3 H), 6.95-7.00 (m, 3 H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
70% | Stage #1: With hydrogen bromide; sodium nitrite In water at 0 - 5℃; for 0.25 h; Stage #2: With hydrogen bromide; copper(I) bromide In water at 20 - 75℃; for 16 h; |
Aqueous hydrobromic acid (48percent, 2.41 mL) was added to 4-fluoro-3-methoxyaniline (1.0 g, 7.1 mmol) in water (10 mL) and the resulting mixture was cooled to 0 °C in an ice bath. A solution of sodium nitrite (538 mg, 7.8 mmol) in water (5 mL) was added dropwise during 15 min while maintaining the temperature between 0-5 0C. The resulting diazoniumsalt solution was added to a suspension of copper(I) bromide (1.12 g, 7.8 mmol) in water (5 mL) which had been pre-heated to 75 °C. The mixture was shaken thoroughly, aqueous hydrobromic acid (48percent, 12.07 mL) was added and the solution was stirred at ambient temperature for 16 h. Excess water was added and the product was extracted with diethyl ether and the combined organic extracts were washed with aqueous saturated sodium chloride, dried over magnesium sulfate, filtered and the solvent was evaporated in vacuo to give 1.02 g (70percent yield) of the title compound.: 1H-NMR (DMSO-J6): δ 7.36 (dd, J= 7.78, 2.26 Hz, 1 H), 7.23-7.17 (m, 1 H), 7.14-7.09 (m, 1 H), 3.86 (s, 3 H); MS (EI) (m/z, percent) 204,206 (100), 189,191 (23), 161,163 (45) |
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