Published TCIMAIL newest issue No.202
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| Product Number | O0292 |
Purity / Analysis Method
|
>98.0%(GC) |
| Molecular Formula / Molecular Weight | C__5F__8 = 212.04 |
| Physical State (20 deg.C) | Liquid |
Storage Temperature
|
Refrigerated (0-10°C) |
| Condition to Avoid | Heat Sensitive |
| CAS RN | 559-40-0 |
| Reaxys Registry Number | 1879470 |
| PubChem Substance ID | 87574278 |
| MDL Number | MFCD00013745 |
| Appearance | Colorless to Almost colorless clear liquid |
| Purity(GC) | min. 98.0 % |
| NMR | confirm to structure |
| Boiling Point | 27 °C |
| Solubility in water | Insoluble |
| Solubility (soluble in) | Acetone |
| Pictogram |
|
| Signal Word | Danger |
| Hazard Statements | H330 : Fatal if inhaled. H318 : Causes serious eye damage. |
| Precautionary Statements | P260 : Do not breathe mist or vapours. P280 : Wear eye protection/ face protection. P284 : Wear respiratory protection. P304 + P340 + P310 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor. P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor. P403 + P233 : Store in a well-ventilated place. Keep container tightly closed. |
| EC Number | 209-203-0 |
| RTECS# | GY6000000 |
| UN Number | UN2810 |
| Class | 6.1 |
| Packing Group | II |
| HS Number | 2903897090 |
A Solution of bromobenzene (488 mg, 3.1 mmol) in anhydrous THF (10 mL) under nitrogen was cooled to -78 °C. Then butyllithium (ca. 1.6mol/L in hexane, 1.9 mL, 3.1 mmol) was added dropwise and stirred at the same temperature for 30 min. To this, octafluorocyclopentene (300 mg, 1.4 mmol) was added and stirred at -78 °C for 1 h. The reaction mixture was quenched with water and extracted with diethyl ether. The organic layer was dried over anhydrous sodium sulfate and filtered. The solvent was removed under reduced pressure and the residue was purified by column chromatography (on silica gel, hexane) to give 1 as a white solid (414 mg, 89% yield).
The reaction mixture was monitored by TLC (hexane, Rf = 0.45).
1,2-Diphenyl-3,3,4,4,5,5-hexafluorocyclopentene (1)
1H NMR (270 MHz, CDCl3); δ 7.43-7.29 (m, 10H)

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