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CAS No. : | 112766-32-2 | MDL No. : | MFCD09763670 |
Formula : | C8H6N2O2 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | QLGJLBPWOCDQQM-UHFFFAOYSA-N |
M.W : | 162.15 | Pubchem ID : | 22474326 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | |
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 |
---|---|---|
67% | With caesium carbonate; In N,N-dimethyl-formamide; at 20.0℃; for 21.0h; | Step 1. benzyl 1H-pyrrolo[3,2-b]pyridine-6-carboxylate To a solution of <strong>[112766-32-2]1H-pyrrolo[3,2-b]pyridine-6-carboxylic acid</strong> (1.37 g, 8.45 mmol) in N,N-dimethylformamide (55 mL) was added cesium carbonate (2.79 g, 8.56 mmol) and benzyl bromide (1.05 mL, 8.64 mmol). The reaction was allowed to stir at room temperature for 17 hours. Additional cesium carbonate (500 mg, 1.54 mmol) and benzyl bromide (0.186 mL, 1.53 mmol) were added, and the reaction was stirred for another 4 hours. The reaction was then quenched with water and diluted with ethyl acetate. The layers were separated and the aqueous was extracted with ethyl acetate three times. The combined organics were washed with water and brine, dried over sodium sulfate, filtered, and concentrated. Purification by flash column chromatography (0-100% ethyl acetate/heptanes) gave the title compound (1.42 g, 67%). +ESI (M+H) 253.3; 1H NMR (400 MHz, DMSO-d6, delta): 11.68 (br. s., 1H), 8.93 (d, J=2.0 Hz, 1H), 8.33 (dd, J=2.0, 1.0 Hz, 1H), 7.93 (t, J=3.0 Hz, 1H), 7.51 (m, 2H), 7.41 (m, 3H), 6.68 (ddd, J=3.1, 2.0, 1.0 Hz, 1H), 5.40 (s, 2H). |
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