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CAS No. : | 120935-94-6 | MDL No. : | MFCD00203873 |
Formula : | C8H10BrNO2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | LGBDYFSMZPRVLL-UHFFFAOYSA-N |
M.W : | 232.07 | Pubchem ID : | 2798469 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | 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 |
---|---|---|
92% | With pyridinium hydrobromide perbromide; triethylamine In dichloromethane at 0℃; for 2 h; | To a mixture of methyl 2,5-dimethyl-1H-pyrrole-3-carboxylate 21 (6.85 g, 45.0 mmol), triethylamine (8.7 mL, 63.0 mmol) and CH2Cl2 (270 mL) was added pyridinium bromide perbromide (15.7 g, 15.7 mmol) portionwise at 0 °C. After stirring at 0 °C for 2 h, the mixture was poured into brine and extracted with EtOAc. The organic layer was dried over anhydrous MgSO4 and concentrated in vacuo. The residue was purified by silica gel column chromatography (hexane-EtOAc). The product was recrystallized from hexane-EtOAc to give 22 (7.59 g, 92percent) as yellow crystals. 1H NMR (300 MHz, CDCl3) δ: 2.19 (3H, s), 2.47 (3H, s), 3.82 (3H, s), 8.20 (1H, s). |
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