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| | 3-CHLOROSULFONYL-4-FLUORO-BENZOIC ACID Basic information |
| Product Name: | 3-CHLOROSULFONYL-4-FLUORO-BENZOIC ACID | | Synonyms: | Benzoic acid,3-(chlorosulfonyl)-4-fluoro-;2-fluoro-5-carboxybenzenesulphonyl chloride;Benzoic acid,3-(chlo;3-(chlorosulfonyl)-4-fluorobenzoic acid(SALTDATA: FREE);3-(Chlorosulphonyl)-4-fluorobenzoic acid;5-Carboxy-2-fluorobenzenesulphonyl chloride;3-CHLOROSULFONYL-4-FLUORO-BENZOIC ACID | | CAS: | 2267-40-5 | | MF: | C7H4ClFO4S | | MW: | 238.62 | | EINECS: | | | Product Categories: | | | Mol File: | 2267-40-5.mol |  |
| | 3-CHLOROSULFONYL-4-FLUORO-BENZOIC ACID Chemical Properties |
| Melting point | 147-148℃ | | Boiling point | 388.6±27.0 °C(Predicted) | | density | 1.670±0.06 g/cm3(Predicted) | | storage temp. | under inert gas (nitrogen or Argon) at 2-8°C | | form | powder | | pka | 2.94±0.10(Predicted) | | color | White/off-white | | InChI | InChI=1S/C7H4ClFO4S/c8-14(12,13)6-3-4(7(10)11)1-2-5(6)9/h1-3H,(H,10,11) | | InChIKey | LZGZJLJZSAGDKR-UHFFFAOYSA-N | | SMILES | C(O)(=O)C1=CC=C(F)C(S(Cl)(=O)=O)=C1 |
| WGK Germany | WGK 3 | | HS Code | 2916399090 | | Storage Class | 8A - Combustible corrosive hazardous materials | | Hazard Classifications | Eye Dam. 1
Skin Corr. 1B |
| | 3-CHLOROSULFONYL-4-FLUORO-BENZOIC ACID Usage And Synthesis |
| Synthesis | Example 2: Synthesis of 2-fluoro-5-(4-methoxybenzoyl)-benzenesulfonamide; 4-fluorobenzoic acid (8 g, 57 mmol) was slowly added to chlorosulfonic acid (58 g, 498 mmol), followed by sodium chloride (10 g, 169 mmol). After the addition was completed, the reaction mixture was heated at 160°C for 5 hours. After completion of the reaction, the reaction mixture was cooled and slowly poured into ice water. The precipitated white solid precipitate was collected by filtration and redissolved in ethyl acetate. The organic layer was washed with saturated sodium chloride solution, dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure to remove the solvent. The residue was ground with hexane to give 7 g (51% yield) of the target product as a white solid.1H NMR (CDCl3): δ 8.78 (m, 1H), 8.52 (m, 1H), 7.5 (t, 1H).MS (m/z): 308 (M-1). | | References | [1] Patent: US2004/2492, 2004, A1. Location in patent: Page/Page column 48-49
[2] Patent: WO2009/118292, 2009, A1. Location in patent: Page/Page column 42-43
[3] Journal of Medicinal Chemistry, 1997, vol. 40, # 13, p. 2017 - 2034
[4] Bioorganic and medicinal chemistry, 2002, vol. 10, # 3, p. 639 - 656
[5] Journal of Medicinal Chemistry, 2005, vol. 48, # 5, p. 1596 - 1609 |
| | 3-CHLOROSULFONYL-4-FLUORO-BENZOIC ACID Preparation Products And Raw materials |
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