| Identification | Back Directory | [Name]
Benzoic acid, 4-amino-2,6-difluoro-, methyl ester (9CI) | [CAS]
191478-99-6 | [Synonyms]
Methyl 4-amino-2,6-difluorobenzoate
4-Amino-2,6-difluorobenzoate methyl
4-Amino-2,6-difuluorobenzoic methyl ester
4-Amino-2,6-difluorobenzoic acid methyl ester
Benzoic acid, 4-amino-2,6-difluoro-, methyl ester (9CI)
Benzoic acid, 4-amino-2,6-difluoro-, methyl ester (9CI) USP/EP/BP | [Molecular Formula]
C8H7F2NO2 | [MDL Number]
MFCD16038807 | [MOL File]
191478-99-6.mol | [Molecular Weight]
187.14 |
| Chemical Properties | Back Directory | [Boiling point ]
306℃ | [density ]
1.355 | [Fp ]
139℃ | [storage temp. ]
2-8°C(protect from light) | [pka]
0.44±0.10(Predicted) | [Appearance]
Gray to brown Solid |
| Hazard Information | Back Directory | [Uses]
Benzoic acid, 4-amino-2,6-difluoro-, methyl ester (9CI) can be used as an
intermediate in the synthesis of pharmaceuticals for its potential role
in the development of new drugs. | [Synthesis]
Methyl 4-[(tert-butoxycarbonyl)amino]-2,6-difluorobenzoate (36 mg, 0.125 mmol) was used as a starting material and 0.5 mL of trifluoroacetic acid (TFA) was added to its solution in 1 mL of dichloromethane at room temperature. The reaction mixture was stirred for 30 minutes at room temperature. Subsequently, the reaction solution was concentrated under reduced pressure and the residue was co-evaporated with dichloromethane and toluene several times to completely remove the residual trifluoroacetic acid. Finally, the product was dried under reduced pressure. The resulting crude product, methyl 4-amino-2,6-difluorobenzoate (24 mg, quantitative yield), could be used in subsequent reactions without further purification. | [References]
[1] Patent: US2016/52884, 2016, A1. Location in patent: Paragraph 0677-0680
[2] Patent: KR2015/137095, 2015, A. Location in patent: Paragraph 0902-0905 |
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