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CAS No. : | 1201-38-3 | MDL No. : | MFCD00008728 |
Formula : | C10H12O3 | Boiling Point : | - |
Linear Structure Formula : | (CH3O)2C6H3COCH3 | InChI Key : | FAXUIYJKGGUCBO-UHFFFAOYSA-N |
M.W : | 180.20 | Pubchem ID : | 70991 |
Synonyms : |
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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 |
---|---|---|
59.1% | 20. Preparation of compound 18 (3-(3-thiophene)carboxyl-1-(2,5-dimethoxyphenyl)prop-2-en-1-one); 2,5-Dimethoxyacetophenone (450.0 mg, 2.5 mmol) and <strong>[4565-31-5]5-formyl-2-thiophenecarboxylic acid</strong> (390.4 mg, 2.5 mmol) were dissolved in MeOH (50 mL), and added 8percent KOH in H2O (50 mL). The reaction mixture was stirred at room temperature for 72 hours and neutralized with 10percent HCl solution (100 mL) to form yellow precipitate. The yellow precipitate was filtered and washed with appropriate amount of water. The crude product was purified by chromatography using EtOAc/n-hexane (2:1), and crystallized with EtOAc to afford compound 18 (469.6 mg, 59.1percent) as a yellow solid. The reaction formula of compound 18 (Formula II) was listed as follows. The properties of compound 18 were listed as follows. 1H NMR (CD3OD): delta 3.80 (3H, s, OCH3), 3.90 (3H, s, OCH3), 7.12 (1H, m, H-3'), 7.14 (1H, m, H-4'), 7.15 (1H, m, H-6'), 7.40 (1H, d, J=15.6 Hz, H-alpha), 7.42 (1H, d, J=3.2 Hz, H-5), 7.70 (1H, d, 15.6 Hz, H-beta), 7.71 (1H, d, J=3.2 Hz, H-4). 13C NMR (CD3OD): delta 56.2 (OCH3), 56.9 (OCH3), 114.8 (C-6'), 115.5 (C-3'), 120.7 (C-4'), 129.1 (C-alpha), 132.8 (C-5), 135.1 (C-4), 135.8 (C-beta), 147.5 (C-1), 154.3 (C-5'), 155.2 (C-2'), 193.2 (CO). ESIMS: m/z 319 [M+H]+. Anal. Calcd for C16H14O5S: C, 60.37; H, 4.43; S, 10.07. Found: C, 60.09; H, 4.42; S, 10.27. |
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