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CAS No. : | 40598-94-5 | MDL No. : | MFCD00159926 |
Formula : | C7H5BrN2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | HTKXRTUKPXEALT-UHFFFAOYSA-N |
M.W : | 197.03 | Pubchem ID : | 721568 |
Synonyms : |
|
Signal Word: | Danger | Class: | 6.1 |
Precautionary Statements: | P261-P301+P310-P305+P351+P338 | UN#: | 2811 |
Hazard Statements: | H301-H315-H319-H335 | Packing Group: | Ⅲ |
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 |
---|---|---|
With 1-methyl-pyrrolidin-2-one; caesium carbonate; at 110℃; for 16h;Inert atmosphere; | 3-Bromo-1H-indazole (1.00 g; 4.82 mmol; 1.00 eq),cesium carbonate (3.14 g; 9.64 mmol; 2.00 eq.), 1-methyl-2-pyrrolidone (10.0 ml), 4-fluoro-benzoic acidtert-butyl ester (1.89 g; 9.64 mmol; 2.00 eq.) wre stirred at 110 C in a round bottom flask for 16 hours. The reaction mixture was cooled, diluted with ethyl acetate (50 mL) and water (15 mL). The aqueous layer was extracted with ethyl acetate (50 mL). The combined organic layers were dried over MgSO4, concentrated and purified by silica gel chromatography using a gradient of ethyl acetate in heptane (0 to 100%)tert-Butyl 4-(3-bromo-1H-indazol-1-yl)benzoate was isolated as a colorless oil (2.00 g)MS-ESI m/z 375 [MH+]. |
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