ChemicalBook--->CAS DataBase List--->128577-47-9

128577-47-9

128577-47-9 Structure

128577-47-9 Structure
IdentificationBack Directory
[Name]

4-BROMOMETHYL-3-FLUOROBENZOIC ACID METHYL ESTER
[CAS]

128577-47-9
[Synonyms]

-3-fluorobenzoate
4-(bromomethyl)-3-fluorobenzoic acid
Methyl 4-bromomethyl-3-fluorobenzoat
Methyl 4-broMoMethyl-3-fluorobenzoate
MMETHYL 4-(BROMOMETHYL)-3-FLUOROBENZOATE
4-BROMOMETHYL-3-FLUOROBENZOIC ACID METHYL
4-BROMOMETHYL-3-FLUOROBENZOIC ACID METHYL ESTER
Benzoicacid, 4-(bromomethyl)-3-fluoro-, methyl ester
[EINECS(EC#)]

604-604-1
[Molecular Formula]

C9H8BrFO2
[MDL Number]

MFCD00273345
[MOL File]

128577-47-9.mol
[Molecular Weight]

247.06
Chemical PropertiesBack Directory
[Melting point ]

68 °C(Solv: ethyl ether (60-29-7); hexane (110-54-3))
[Boiling point ]

295.1±35.0 °C(Predicted)
[density ]

1.534±0.06 g/cm3(Predicted)
[storage temp. ]

under inert gas (nitrogen or Argon) at 2-8°C
[form ]

solid
[color ]

White
Safety DataBack Directory
[Symbol(GHS) ]

Exclamation Mark (GHS07)
GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H315-H319-H332-H335
[Precautionary statements ]

P261-P280-P305+P351+P338
[HS Code ]

2916399090
Hazard InformationBack Directory
[Uses]

Methyl 4-(bromomethyl)-3-fluorobenzoate
[Synthesis]

RARECHEM AL BF 0500

87808-48-8

4-BROMOMETHYL-3-FLUOROBENZOIC ACID METHYL ESTER

128577-47-9

Bromination reaction: Methyl 3-fluoro-4-methylbenzoate (18.3 mmol) was dissolved with N-bromosuccinimide (NBS, 3.9 g, 22 mmol) in carbon tetrachloride (40 mL), and benzoyl peroxide (0.55 g, 1.7 mmol) containing 25% water was added as initiator. The reaction mixture was stirred well and heated to reflux for 6 hours. Upon completion of the reaction, the solvent was removed by evaporation and the residue was treated with an aqueous solution of potassium carbonate (K2CO3) followed by extraction of the product with ethyl acetate (EtOAc). After treatment, methyl 3-fluoro-4-(bromomethyl)benzoate was obtained as a light yellow solid in a yield of 5.9 g. The product was analyzed by electrospray ionization mass spectrometry (ESI-MS), which showed the [M + H]+ peak as 247 Da.

[References]

[1] Patent: WO2014/102376, 2014, A1. Location in patent: Page/Page column 45
[2] Patent: WO2014/102377, 2014, A1. Location in patent: Page/Page column 49-50
[3] Journal of Medicinal Chemistry, 2015, vol. 58, # 15, p. 6058 - 6080
[4] Synlett, 2014, vol. 25, # 17, p. 2485 - 2487
[5] Patent: US2006/14945, 2006, A1. Location in patent: Page/Page column 60
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