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CAS No. : | 374063-92-0 | MDL No. : | MFCD06245330 |
Formula : | C4H3BrN2O | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | ITTXBHQAWOFJAI-UHFFFAOYSA-N |
M.W : | 174.98 | Pubchem ID : | 2771618 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319 | 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 |
---|---|---|
83% | With diamide; triphenylphosphine; In tetrahydrofuran; at 20℃; for 24h; | A mixture of (R)-1 -N-Boc-3-hydroxypyrrolidine (5g, 25.90 mmol), 5-bromopyrazin-2-ol (5.44 g, 31.08 mmol), triphenylphosphine (8.15 g, 31.08 mmol), (E)-N1 ,N1 ,N2,N2- tetramethyldiazene-1 ,2-dicarboxamide (6.12 ml, 31.08 mmol) and THF (150 ml) was stirred at room temperature for 24h. After addition of EtOAc and water, the organic phase was dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by flash chromatography eluting with a mixture of DCM and MeOH (98/02; v/v) to give 7.4 g (83 %) (S)-tert-butyl 3-((5-bromopyrazin-2- yl)oxy)pyrrolidine-1 -carboxylate (2a'). LC/MS (m/z, MH+): 344 |
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