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CAS No. : | 121219-16-7 | MDL No. : | MFCD01863170 |
Formula : | C6H5BF2O2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | SZYXKFKWFYUOGZ-UHFFFAOYSA-N |
M.W : | 157.91 g/mol | Pubchem ID : | 2734333 |
Synonyms : |
|
Num. heavy atoms : | 11 |
Num. arom. heavy atoms : | 6 |
Fraction Csp3 : | 0.0 |
Num. rotatable bonds : | 1 |
Num. H-bond acceptors : | 4.0 |
Num. H-bond donors : | 2.0 |
Molar Refractivity : | 36.18 |
TPSA : | 40.46 Ų |
GI absorption : | High |
BBB permeant : | Yes |
P-gp substrate : | No |
CYP1A2 inhibitor : | No |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | No |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -6.53 cm/s |
Log Po/w (iLOGP) : | 0.0 |
Log Po/w (XLOGP3) : | 1.03 |
Log Po/w (WLOGP) : | 0.48 |
Log Po/w (MLOGP) : | 1.15 |
Log Po/w (SILICOS-IT) : | 0.13 |
Consensus Log Po/w : | 0.56 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 1.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -1.81 |
Solubility : | 2.47 mg/ml ; 0.0156 mol/l |
Class : | Very soluble |
Log S (Ali) : | -1.47 |
Solubility : | 5.35 mg/ml ; 0.0339 mol/l |
Class : | Very soluble |
Log S (SILICOS-IT) : | -1.83 |
Solubility : | 2.31 mg/ml ; 0.0147 mol/l |
Class : | Soluble |
PAINS : | 0.0 alert |
Brenk : | 1.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 2.2 |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
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* 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 |
---|---|---|
93% | With dihydrogen peroxide In dichloromethane at 25℃; for 2 h; | Step 1Into a 500 mL round-bottom flask, was placed a solution of (2,3-difluorophenyl)- boronic acid (30 g, 189.98 mmol, 1.00 equiv) in dichloromethane (250 mL). H2C>2 (30 mL) was added dropwise with stirring. The resulting solution was stirred for 2 h at 25 °C. The resulting mixture was washed with water and brine, dried over anhydrous magnesium sulfate and concentrated under vacuum to give 23 g (93percent) of 2,3~difluorophenol as a brown oil. |
93% | With dihydrogen peroxide In dichloromethane at 25℃; for 2 h; | Step 1into a 500 mL round-bottom flask, was placed a solution of (2,3-difluorophenyl)- boronic acid (30 g, 189.98 mmol, 1.00 equiv) in dichloromethane (250 mL). 3/4<3/4 (30 mL) was added dropwise with stirring. The resulting solution was stirred for 2 h at 25 °C. The resulting mixture was washed with water and brine, dried over anhydrous magnesium sulfate and concentrated under vacuum to give 23 g (93percent) of 2,3-difluorophenoI as brown oil. |
93% | With dihydrogen peroxide In dichloromethane at 25℃; for 2 h; | Into a 500 mL round-bottom flask, was placed a solution of (2,3-difluorophenyl)-boronic acid (30 g, 189.98 mmol, 1.00 equiv) in dichloromethane (250 mL). H2O2 (30 mL) was added dropwise with stirring. The resulting solution was stirred for 2 h at 25 °C. The resulting mixture was washed with water and brine, dried over anhydrous magnesium sulfate and concentrated under vacuum to give 23 g (93percent) of 2,3-difluorophenol as brown oil. |
93% | With dihydrogen peroxide In dichloromethane at 25℃; for 2 h; | Step 1. Into a 500 mL round-bottom flask, was placed a solution of (2,3-difluorophenyl)boronic acid (30 g, 189.98 mmol, 1.00 equiv) in dichloromethane (250 mL). H2O2 (30 mL)was added dropwise with stirring. The resulting solution was stirred for 2 h at 25 °C. The resulting mixture was washed with water and brine, dried over anhydrous magnesium sulfate and concentrated under vacuum to give 23 g (93percent) of 2,3-difluorophenol as brown oil. |
93% | With dihydrogen peroxide In dichloromethane at 25℃; for 2 h; | Step 1 Into a 500 mL round-bottom flask, was placed a solution of (2,3-difluorophenyl)-boronic acid (30 g, 189.98 mmol, 1.00 equiv) in dichloromethane (250 mL). H2O2 (30 mL) was added dropwise with stirring. The resulting solution was stirred for 2 h at 25° C. The resulting mixture was washed with water and brine, dried over anhydrous magnesium sulfate and concentrated under vacuum to give 23 g (93percent) of 2,3-difluorophenol as brown oil. |
93% | With dihydrogen peroxide In dichloromethane at 25℃; for 2 h; | Into a 500 mL round-bottom flask, was placed a solution of (2,3-difluorophenyl)-boronic acid (30 g, 189.98 mmol, 1.00 equiv) in dichloromethane (250 mL). H2O2 (30 mL) was added dropwise with stirring. The resulting solution was stirred for 2 h at 25° C. The resulting mixture was washed with water and brine, dried over anhydrous magnesium sulfate and concentrated under vacuum to give 23 g (93percent) of 2,3-difluorophenol as brown oil. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
85% | Stage #1: With n-butyllithium In tetrahydrofuran; hexane at -78 - -70℃; for 2 h; Inert atmosphere Stage #2: at -70 - 20℃; Inert atmosphere |
1,2-Difluorobenzene (40 g, 0.35 mol) and dry tetrahydrofurane (400 ml) were placed in 1 L flask equipped with mechanical stirrer, nitrogen inlet and outlet, pressure-equilibrated dropping funnel and thermometer. The reaction flask was flushed with nitrogen and minor flow was held during whole reaction time. The mixture was cooled down to −78° C. with dry ice/acetone bath and 2.5 mol/L hexane solution of n-butyllithium (140 ml; 0.35 mol) was added dropwise, keeping the reaction temperature below −70° C. After addition of all butyllithium solution the mixture was stirred at −78° C. for 2 h and then tripropylborate (66 g, 0.35 mol) was added dropwise keeping the reaction temperature below −70° C. After addition of tripropyl borate the cooling bath was removed and the reaction mixture continuously stirred to reach the room temperature then the solvents were evaporated. The thick liquid residue was acidified and then propanol was evaporated and the remaining solid was filtered off, washed out with hexane and recrystalized from water. The white crystalline product 47 g was obtained, with 85percent of theor. yield. |
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