| Identification | More | [Name]
3-Amino-4-fluorophenol | [CAS]
62257-16-3 | [Synonyms]
3-Amino-4-fluorophenol
6004 3-AMINO-4-FLUORO PHENOL | [EINECS(EC#)]
690-814-8 | [Molecular Formula]
C6H6FNO | [MDL Number]
MFCD09033850 | [Molecular Weight]
127.12 | [MOL File]
62257-16-3.mol |
| Chemical Properties | Back Directory | [Melting point ]
141-143 °C | [Boiling point ]
269.3±20.0 °C(Predicted) | [density ]
1.347±0.06 g/cm3(Predicted) | [storage temp. ]
Keep in dark place,Sealed in dry,Room Temperature | [form ]
crystalline powder | [pka]
10.03±0.18(Predicted) | [color ]
Light tan | [InChI]
InChI=1S/C6H6FNO/c7-5-2-1-4(9)3-6(5)8/h1-3,9H,8H2 | [InChIKey]
VJCSFNNTQGRAKH-UHFFFAOYSA-N | [SMILES]
C1(O)=CC=C(F)C(N)=C1 | [CAS DataBase Reference]
62257-16-3(CAS DataBase Reference) |
| Hazard Information | Back Directory | [Description]
3-amino-4-fluorophenol is a kind of organic chemistry intermediate commonly used as the intermediate for synthesizing compounds of liquid crystals, pharmaceutical compounds and agricultural chemical compounds used always. | [Uses]
3-Amino-4-fluorophenol is used to produce drugs with specific biological activities, including antibiotics and anti-inflammatory agents.
| [Synthesis]
Add 450ml water in the 5L reaction flask, 708.5g (10.9mol) zinc powder, 303g (1.09mol) 2-bromo-4-fluoro-5-amino-benzene oxygen ethyl formate, mix, 45 ℃ drip the solution that 218g (5.45mol) sodium hydroxide and 1500ml water are made into down, insulated and stirred is warming up to 60 ℃ after 1 hour to be incubated 4 hours after reactions more complete, the cooling suction filtration, getting filtrate dropping 406g (3.33mol) 30% hydrochloric acid separates product, filtration obtains brown solid, use ethyl alcohol recrystallization, get yellow solid 118.5g (0.93mol) 3-amino-4-fluorophenol after the drying. A molar yield of 85% is 99.5% through gas chromatography determination purity.136 ℃/20mmHg of boiling point.
| [References]
[1] Organic Process Research and Development, 2014, vol. 18, # 1, p. 122 - 134
[2] Patent: US2008/90856, 2008, A1. Location in patent: Page/Page column 38
[3] Patent: WO2010/51373, 2010, A1. Location in patent: Page/Page column 75-76
[4] Patent: WO2013/36232, 2013, A2. Location in patent: Paragraph 00253
[5] Patent: US2009/137595, 2009, A1 |
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