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CAS No. : | 4519-40-8 | MDL No. : | MFCD00010298 |
Formula : | C6H5F2N | Boiling Point : | - |
Linear Structure Formula : | F2(C6H3)NH2 | InChI Key : | YCCQGFYAVUTQFK-UHFFFAOYSA-N |
M.W : | 129.11 | Pubchem ID : | 78278 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
93% | With palladium 10% on activated carbon; hydrogen; triethylamine; In methanol; at 50℃; for 2.5h; | First, 0.638 g (2.01 mmol) of <strong>[1481-57-8]1,2-dibromo-4,5-difluoro-3-nitrobenzene</strong> was dissolved in 4 mL of methanol, and then 48.4 mg of 10% Pd/C (50% wet) and 6.2 mg (0.06 mmol) of triethylamine were added. The atmosphere inside the reaction vessel was substituted with hydrogen, and the reaction mixture was reacted at 50C for 2 hours under slight hydrogen pressurization. Analysis of the resulting reaction product by HPLC revealed 2.2 area% of 2,3-dibromo-5,6-difluoroaniline as a residual intermediate. Reaction was continued under the same conditions for a further 0.5 hours. The catalyst was then removed by filtration. The resulting liquid was subjected to quantitative analysis by HPLC. The yield of 2,3-difluoroaniline was 93%. The intermediate 2,3-dibromo-5,6-difluoroaniline had been eliminated. |