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CAS RN: 559-40-0 | 产品编码: O0292
Octafluorocyclopentene
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技术规格
| Appearance | Colorless to Almost colorless clear liquid |
| Purity(GC) | min. 98.0 % |
物性（参考值）
| 水溶性 | 不溶 |
| 溶解性（可溶于） | 丙酮 |
GHS
| 象形图 |
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| 信号词 | Warning |
| 危险性说明 | H302 + H312 + H332 : Harmful if swallowed, in contact with skin or if inhaled. H315 : Causes skin irritation. H319 : Causes serious eye irritation. |
| 防范说明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P261 : Avoid breathing dust/ fume/ gas/ mist/ vapors/ spray. P270 : Do not eat, drink or smoke when using this product. P271 : Use only outdoors or in a well-ventilated area. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection. 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. P301 + P312 + P330 : IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth. P302 + P352 + P312 : IF ON SKIN: Wash with plenty of water.Call a POISON CENTER/doctor if you feel unwell. P304 + P340 + P312 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor if you feel unwell. |
相关法规
| RTECS# | GY6000000 |
运输信息
| HS编码* | 2903.89-900 |
应用
TCI Practical Example: Addition Reaction to Octafluorocyclopentene
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Used Chemicals
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Procedure
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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).
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Experimenter’s Comments
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The reaction mixture was monitored by TLC (hexane, Rf = 0.45).
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Analytical Data
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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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Lead Reference
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- Reaction of octafluorocyclopentene with various carbon nucleophiles
应用
二置換パーフルオロシクロペンテンの合成
The nucleophilic substitution reaction of octafluorocyclopentene gives the corresponding disubstituted perfluorocyclopentenes in good yields which are attractive compounds for applications to optoelectronic devices, etc.
References
- Thermally irreversible photochromic systems. Reversible photocyclization of 1,2-bis(2-methylbenzo[b]thiophen-3-yl)perfluorocycloalkene derivatives
- Light-triggered molecular devices: photochemical switching of optical and electrochemical properties in molecular wire type diarylethene species
- Diarylethenes for Memories and Switches (a review)
- Reaction of octafluorocyclopentene with various carbon nucleophiles
- Efficient synthesis and properties of isomeric photochromic diarylethenes having a pyrrole unit
参考文献