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CAS RN: 7440-23-5 | 产品编码: D5792
SD Super Fine™ (Sodium 25wt% dispersion in mineral oil)
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补充产品信息:
The 100G size ships as one box with 4 x 25G bottles.
This product is designed to be stored in a freezer, as it will cause sedimentation by long-term storage.
Please shake the bottle vigorously up and down until a sediment of fine particles redisperses homogeneously before use.
If agglomerate is still remaining even after vigorous shaking, please dispose appropriately.
We recommend to consume this product as soon as possible after purchasing.
This product was commercialized with the cooperation and help from Kobelco Eco-Solutions Co., Ltd.
SD Super Fine™ is a trademark of Kobelco Eco-Solutions Co.,Ltd.
| 产品编码 | D5792 |
| 分子式/分子量 | Na = 22.99 |
| 外观与形状（20°C） | 液体 |
储存温度 
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冷冻 (-20°C) |
| 储存在惰性气体下 | 存放于惰性气体之中 |
| 应避免的情况 | 湿气 (分解),加热 |
| CAS RN | 7440-23-5 |
| PubChem物质ID | 468591564 |
| Merck Index (14) | 8570 |
| MDL编号 | MFCD00085307 |
技术规格
| Appearance | Light gray to Brown to Black cloudy liquid |
| Concentration(Neutralization titration) | 25.0 to 27.0 % |
物性（参考值）
| 比重 | 0.90 |
GHS
| 象形图 |
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| 信号词 | Danger |
| 危险性说明 | H314 : Causes severe skin burns and eye damage. H260 : In contact with water releases flammable gases which may ignite spontaneously. |
| 防范说明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P223 : Do not allow contact with water. P231 + P232 : Handle under inert gas. Protect from moisture. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection. P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. P335 + P334 : Brush off loose particles from skin. Immerse in cool water/ wrap in wet bandages. P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. P301 + P330 + P331 : IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P363 : Wash contaminated clothing before reuse. 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. P402 + P404 : Store in a dry place. Store in a closed container. P405 : Store locked up. |
相关法规
| RTECS# | VY0686000 |
运输信息
| UN编号 | UN1391 |
| 类别 | 4.3 |
| 包装类别 | I |
| HS编码* | 2805.11-000 |
应用
TCI Practical Example: Ammonia-Free Birch Reduction Using Sodium Dispersion (SD Super Fine™)
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Used Chemicals
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Procedure
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To reaction vessel under nitrogen atmosphere, 1,3-dimethyl-2-imidazolidinone (5.0 mL), tetrahydrofuran (0.42 mL) were added successively and cooled in ice bath. And SD Super Fine™ (Sodium 25wt% dispersion in mineral oil, 0.70 g) weighted in a syringe was added to the mixture. Decylbenzene (0.42 g, 1.9 mmol) and tert-butyl alcohol (0.57 g, 7.7 mmol) were added at the same temperature. After 30 minutes, confirmed consumption of raw material completely by TLC, the reaction mixture was added to ice water. The aqueous layer was extracted with hexane and the organic layer was washed with brine and dried over magnesium sulfate. After filtration, the filtrate was concentrated. The obtained crude product was purified by silica gel column chromatography (hexane) and 1-decyl-1,4-cyclohexadiene (388 mg, yield 92% (NMR), containing 13% 1-decylcyclohex-1-ene) as a colorless oil.
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Experimenter’s Comments
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The reaction mixture was monitored by TLC (hexane, Rf = 0.9).
Since this reaction does not require liquid ammonia, it is more convenient to perform than the conventional Birch reduction.
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Lead Reference
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- Birch Reduction of Arenes Using Sodium Dispersion and DMI under Mild Conditions
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Other Reference
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- A Practical and Chemoselective Ammonia-Free Birch Reduction
应用
Organosodium Compounds for Catalytic Cross-coupling
References
- Organosodium Compounds for Catalytic Cross-coupling
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