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CAS RN: 94790-35-9 | Product Number: C1957
Chloro-N,N,N',N'-tetramethylformamidinium Hexafluorophosphate
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Purity: >98.0%(N)
Synonyms:
- TCFH
Product Documents:
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| Product Number | C1957 |
| Purity / Analysis Method | >98.0%(N) |
| Molecular Formula / Molecular Weight | C__5H__1__2ClF__6N__2P = 280.58 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature | Frozen (<0°C) |
| Store Under Inert Gas | Store under inert gas |
| Condition to Avoid | Moisture Sensitive,Heat Sensitive |
| Packaging and Container | 1G-Glass Bottle with Plastic Insert (View image) |
| CAS RN | 94790-35-9 |
| Reaxys Registry Number | 7896715 |
| PubChem Substance ID | 87558395 |
Specifications
| Appearance | White to Almost white powder to crystal |
| Purity(with Total Nitrogen) | min. 98.0 % |
Properties (reference)
| Melting Point | 107 °C |
GHS
| Pictogram |
|
| Signal Word | Warning |
| Hazard Statements | H315 : Causes skin irritation. H319 : Causes serious eye irritation. |
| Precautionary Statements | P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ eye protection/ face protection. P302 + P352 : IF ON SKIN: Wash with plenty of water. P337 + P313 : If eye irritation persists: Get medical advice/ attention. P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P362 + P364 : Take off contaminated clothing and wash it before reuse. P332 + P313 : If skin irritation occurs: Get medical advice/ attention. |
Related Laws:
Transport Information:
| H.S.code* | 2931.59-000 |
Application
A Condensation Reagent for Hindered Carboxylic Acids and Low-nucleophilic Amines
Experimental procedure: 2-Methyl-2-phenylpropanoic acid (0.250 g, 1.52 mmol), 4-aminobenzonitrile (0.234 g, 1.98 mmol) and N-methylimidazole (0.42 mL, 5.33 mmol) in acetonitrile are added with chloro-N,N,N',N'-tetramethylformamidinium hexafluorophosphate (0.517 g, 1.83 mmol) in a single portion. After reaction, the reaction mixture is diluted with isopropyl acetate and water. The layers are separated, the aqueous layer is extracted with isopropyl acetate and the combined organics are washed with water, dried wover magnesium sulfate. The mixtute is filtered and concentrated, and then is purified by silica gel chromatography (heptane/isopropyl acetate) to give N-(4-cyanophenyl)-2-methyl-2-phenylpropanamide (374 mg, 93% yield) as a white solid.
References
- TCFH－NMI: Direct Access to N-Acyl Imidazoliums for Challenging Amide Bond Formations
Application
Active Esterification
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