Alternatived Products of [ 6157-98-8 ]
Alternatived Products of [ 6157-98-8 ]
Product Details of [ 6157-98-8 ]
CAS No. : | 6157-98-8 | MDL No. : | MFCD00278791 |
Formula : |
C6H2F4N2O2
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Boiling Point : |
- |
Linear Structure Formula : | - | InChI Key : | - |
M.W : | 210.09 | Pubchem ID : | - |
Synonyms : |
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Computed Properties of [ 6157-98-8 ]
TPSA :Topological Polar Surface Area |
- |
H-Bond Acceptor Count : |
- |
XLogP3 : |
- |
H-Bond Donor Count : |
- |
SP3 : |
- |
Rotatable Bond Count : |
- |
Safety of [ 6157-98-8 ]
Signal Word: | | Class: | |
Precautionary Statements: | | UN#: | |
Hazard Statements: | | Packing Group: | |
Application In Synthesis of [ 6157-98-8 ]
- Upstream synthesis route of [ 6157-98-8 ]
- Downstream synthetic route of [ 6157-98-8 ]
- 1
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[ 6157-98-8 ]

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[ 2993-07-9 ]
Yield | Reaction Conditions | Operation in experiment |
62% |
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A mixture of 2,3,4,5-tetrafluoro-6- nitro-phenylamine (9.72 g, 46.26 mmol) and tin (II) dihydrate (52.00 g, 231.30 mmol) in ethanol (100 mL) was heated to reflux under nitrogen atmosphere for 30 min. After mixture was cooled down to room temperature, it was poured into a K2C03 solution. The solution was extracted with ethyl acetate. The combined organic layer was dried over magnesium sulfate. Solvent was removed under reduced pressure and the residue was crystallized in hexane to give a white solid (5.20 g, 62percent). 1H (300 MHz, CDZCl2) (at) 3.12 (s, 4H). 13C NMR (75 MHz, CD2C12):139.55,136.30,133.02,120.71, 100.12. HRMS EI: m/z calcd for C6H4F4N2 180.0311 Found 180.0318. |
Reference:
[1]Journal of the American Chemical Society,2008,vol. 130,p. 186 - 194
[2]Journal of Fluorine Chemistry,1997,vol. 81,p. 133 - 138
[3]Patent: WO2005/123737,2005,A2 .Location in patent: Page/Page column 118-119
[4]Tetrahedron,1967,vol. 23,p. 4719 - 4727
[5]Journal of Medicinal Chemistry,1995,vol. 38,p. 4367 - 4379