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179899-07-1

179899-07-1 Structure

179899-07-1 Structure
IdentificationMore
[Name]

4-Fluoro-2-methoxyphenylboronic acid
[CAS]

179899-07-1
[Synonyms]

2-METHOXY-4-FLUOROPHENYLBORONIC ACID
4-FLUORO-2-METHOXYBENZENEBORONIC ACID
4-FLUORO-2-METHOXYPHENYLBORONIC ACID
AKOS BRN-0234
4-FLUORO-2-FORMYLPHENYLBORONIC ACID
4-Fluoro-2-Methoxyphenylboroni
5-Fluoroanisole-2-boronic acid
[Molecular Formula]

C7H8BFO3
[MDL Number]

MFCD03788423
[Molecular Weight]

169.95
[MOL File]

179899-07-1.mol
Chemical PropertiesBack Directory
[Melting point ]

131-136 °C (lit.)
[Boiling point ]

294.8±50.0 °C(Predicted)
[density ]

1.26±0.1 g/cm3(Predicted)
[storage temp. ]

Inert atmosphere,Room Temperature
[form ]

Crystalline Powder
[pka]

8.69±0.58(Predicted)
[color ]

White
[InChI]

InChI=1S/C7H8BFO3/c1-12-7-4-5(9)2-3-6(7)8(10)11/h2-4,10-11H,1H3
[InChIKey]

ADJBXDCXYMCCAD-UHFFFAOYSA-N
[SMILES]

B(C1=CC=C(F)C=C1OC)(O)O
[CAS DataBase Reference]

179899-07-1(CAS DataBase Reference)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

R36/37/38:Irritating to eyes, respiratory system and skin .
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S36:Wear suitable protective clothing .
[WGK Germany ]

3
[Hazard Note ]

Irritant
[HazardClass ]

IRRITANT
[HS Code ]

29319090
Hazard InformationBack Directory
[Uses]

Reactant involved in:
  • Suzuki-Miyaura cross-coupling reactions for synthesis of heterobiaryls
  • Suzuki and Still coupling for synthesis of antithrombotic drugs

Reactant / precursor used for the synthesis of biologically active molecules including:
  • 2-(4-pyridyl)thienopyridinones for use as GSK-3β inhibitors
  • Arylheteroarylmethylamines as NR2B subtype of NMDA receptor antagonists with antidepressant activity
  • Biphenylketones for use as dual modulators of inflammation and bone loss
  • CB1 antagonists
[Uses]

suzuki reaction
[Synthesis]

Trimethyl borate

121-43-7

2-Bromo-5-fluoroanisole

450-88-4

4-Fluoro-2-methoxyphenylboronic acid

179899-07-1

4-Fluoro-2-methoxyphenylboronic acid was synthesized as follows: 2-bromo-5-fluoroanisole (5.9 g, 29 mmol) and anhydrous tetrahydrofuran (50 mL) were added to a dry round-bottomed flask under argon protection. After cooling the reaction system to -78°C, n-butyllithium (17.4 mL, 43.5 mmol) was added slowly and dropwise. After stirring the reaction at -78°C for 30 minutes, trimethyl borate (4.9 mL, 43.5 mmol) was added, followed by a slow warming of the reaction mixture to room temperature (~1.3 hours). After completion of the reaction, the mixture was cooled to 0°C and acidified by adding 10% aqueous hydrochloric acid (20 mL). Tetrahydrofuran was removed by distillation under reduced pressure and saturated saline (50 mL) was added. The aqueous phase was extracted twice with ether. The organic phases were combined and washed sequentially with 10% aqueous hydrochloric acid and saturated saline. The organic layer was dried over anhydrous magnesium sulfate and concentrated under reduced pressure to give the yellow solid product 4-fluoro-2-methoxyphenylboronic acid (4 g, 82% yield). The product was characterized by 1H NMR (400 MHz, acetone-d6): δ 7.84 (t, 1H, J = 8 Hz, C6-H), 6.85 (dd, 1H, J = 12.2 Hz, C3-H), 6.76 (td, 1H, J = 8, 2 Hz, C5-H).

[References]

[1] Patent: US2004/6134, 2004, A1
Spectrum DetailBack Directory
[Spectrum Detail]

4-Fluoro-2-methoxyphenylboronic acid(179899-07-1)1HNMR
4-Fluoro-2-methoxyphenylboronic acid(179899-07-1)19FNMR
Well-known Reagent Company Product InformationBack Directory
[Sigma Aldrich]

179899-07-1(sigmaaldrich)
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