- Dimethyl fluoromalonate
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- $15.00 / 1KG
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2021-07-13
- CAS:344-14-9
- Min. Order: 1KG
- Purity: 99%+ HPLC
- Supply Ability: Monthly supply of 1 ton
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| | Dimethyl fluoromalonate Basic information |
| Product Name: | Dimethyl fluoromalonate | | Synonyms: | 2-FLUORO-MALONIC ACID DIMETHYL ESTER;2-FLUORO-4-METHOXYACETOACETIC ACID METHYL ESTER;BUTYRIC ACID, 2-FLUORO-3-OXO-4-METHOXY-, METHYL ESTER;DIMETHYL FLUOROMALONATE;Dimethyl 2-fluoromalonate;METHYL 2-FLUORO-4-METHOXYACETOACETATE;fluoro-malonicaciddimethylester;Dimethyl fluoromalonate 97% | | CAS: | 344-14-9 | | MF: | C5H7FO4 | | MW: | 150.11 | | EINECS: | 670-542-6 | | Product Categories: | Small molecule;API intermediates | | Mol File: | 344-14-9.mol |  |
| | Dimethyl fluoromalonate Chemical Properties |
| Boiling point | 76 °C | | density | 1.4g/ml | | refractive index | 1.4032 | | Fp | 111-112°C/45mm | | pka | 10.35±0.46(Predicted) | | form | solid | | color | Colourless to off-white / liquid | | BRN | 1768414 | | CAS DataBase Reference | 344-14-9(CAS DataBase Reference) |
| | Dimethyl fluoromalonate Usage And Synthesis |
| Chemical Properties | white to light yellow crystal powder | | Uses | Dimethyl 2-fluoromalonate is used as an intermediate in organic synthesis. | | Preparation | synthesis of dimethyl 2-fluoromalonate: Dimethyl malonate (19.8 g, 0.15 mol) and Cu(NO3)2·2.5H2O (3.50 g, 15 mmol) were dissolved in acetonitrile (85 mL), the mixture was cooled to 0–5 °C and stirred at 650 rpm using an overhead stirrer. After purging the system with N2 for 5 minutes, fluorine gas (20% v/v in N2, 50 mL min-1 , 170 mmol) was introduced into the reaction mixture for 7 h. After purging with nitrogen for 20 minutes, the solvent was removed in vacuo and the residue was partitioned between water (30 mL) and ethyl acetate (20 mL). The aqueous phase was extracted with ethyl acetate (2 × 20 mL) and the combined organic layer was washed with saturated brine (20 mL). After drying over sodium sulphate, the solvent was evaporated under reduced pressure to give dimethyl 2-fluoromalonate (21.8 g, 97% yield, 95% purity) as a colourless oil;
IR (neat, cm-1 ) 2962, 1748, 1438, 1250, 1206, 1112, 1016; δH (CDCl3, 400 MHz) 3.85 (6H, s, CH3), 5.31 (1H, d, 2 JHF 48.0, CHF); δF (CDCl3, 376 MHz): -195.73 (d, 2 JHF 48.0, CH–F); δC (CDCl3, 100 MHz) 53.48 (CH3), 85.19 (d, 1 JCF 197.2, C–F), 164.39 (d, 2 JCF 24.0, CvO); m/z (EI+ ) 150 (3%, [M]+ ), 119 (42%, [M-OMe]+ ), 91 (73%, [M-COOMe]+ ), 59 (100%, [COOMe]+ ). |
| | Dimethyl fluoromalonate Preparation Products And Raw materials |
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