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CAS No. : | 90905-32-1 | MDL No. : | MFCD03446732 |
Formula : | C6H6N2O2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | MERUNNHMVZFFRE-UHFFFAOYSA-N |
M.W : | 138.12 | Pubchem ID : | 3151866 |
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 |
---|---|---|
32% | To a stirred solution of <strong>[34259-99-9]<strong>[34259-99-9]4-bromothiazol</strong>e</strong> (50.0 mg, 0.3 05 mmol) in THF (2 mL) under nitrogen atmosphere was added n-butyllithium (2.5 molar solution in hexane) (0.183 mL, 0.45 7 mmol) at - 78 °C. Resulting pale yellow solution was stirred at -78 °C for 30 mm. Then, 2- methoxypyrimidine-5-carbaldehyde (37.9 mg, 0.274 mmol) in 0.5 mL THF was added and the reaction mixture was stirred at -78 °C for 1 h. Reaction was quenched with water (2 mL) anddiluted with ethyl acetate (5 mL). The organic layer was separated, washed with brine, dried over anhydrous sodium sulphate and evaporated under vacuum to get the crude product. The crude product was purified by combiflash chromatography (4 g Redisep® Si02 column, eluting with 72percent EtOAc in n-hexanes) to afford the title compound 143A (30 mg, 32percent) as a pale yellow oil. LC-MS retention time = 0.84 mm; m/z = 304.0 [M+Hf AQUITY UPLC BEH C18 (3.0 x 50mm)1.7 micron column; Mobile Phase A: 5 mM ammonium acetate in 95percent Water/ 5percent ACN; Mobile Phase B: 5 mM ammonium acetate in 5percent Water/ 95percent ACN; Gradient time 1.7 mm. 20percent B to 90percent B over 1.7 mm. Flow rate 0.7 mL/min; Detection: UV at 220 nm. 1H NMR (400 MHz, CD3OD) oe ppm 8.63 (s, 2H), 7.55 (s, 1H), 6.05 (s, 1H), 4.03 (s, 3H). |
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