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CAS No. : | 5438-70-0 | MDL No. : | MFCD00017569 |
Formula : | C10H13NO2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | CFNDVXUTYPXOPG-UHFFFAOYSA-N |
M.W : | 179.22 | Pubchem ID : | 225219 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-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 |
---|---|---|
45% | In N,N-dimethyl-formamide; at 65℃; for 2.5h; | To a solution of 1H-thieno[2,3-d]pyrimidine-2,4-dione (62) (92.8 mg, 0.552 mmol) in toluene (1 mL) were added N,N-dimethylaniline (0.140 mL, 1.10 mmol) and phosphoryl chloride (0.280 mL, 3.00 mmol). The reaction mixture was warmed to 100 °C and stirred for 3 h. After cooling to room temperature, H2O was added to the reaction mixture and the mixture was extracted with CHCl3. The combined organic layer was washed with brine, dried over Na2SO4, and concentrated in vacuo to give <strong>[18740-39-1]2,4-dichlorothieno[2,3-d]pyrimidine</strong> (63). This compound was used for the next reaction without further purification.To a solution of 63 in DMF (4 mL) was added ethyl 2-(4-aminophenyl)acetate (95.2 mg, 0.531 mmol) and the reaction mixture was stirred at 65 °C for 2.5 h. After cooling, H2O was added to the reaction mixture and the mixture was extracted with EtOAc. The combined organic layer was washed with brine, dried over Na2SO4, and concentrated in vacuo. The residue was chromatographed (EtOAc/hexane = 0percent to 100percent) to give the title compound (85.9 mg, 0.247 mmol, 45percent) as a colorless solid. 1H NMR (CDCl 3) delta: 1.28 (3H, t, J = 7.4 Hz), 3.64 (2H, s), 4.18 (2H, q, J = 7.4 Hz), 7.03 (1H, d, J = 5.7 Hz), 7.21 (1H, s), 7.29 (1H, d, J = 5.7 Hz), 7.32 (2H, d, J = 8.6 Hz), 7.56 (2H, d, J = 8.6 Hz). |
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