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CAS RN: 144-79-6 | 产品编码: D1390
Diphenylmethylchlorosilane
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| 规格 | 单价 | 同一天 | 2-3个工作日 | 数量 |
|---|---|---|---|---|
| 25ML |
S$111.00
|
≥60 | ≥80 |
|
技术规格
| Appearance | Colorless to Light yellow to Light orange clear liquid |
| Purity(GC) | min. 95.0 % |
物性（参考值）
| 熔点 | -22 °C |
| 沸点 | 295 °C |
| 闪点 | 141 °C |
| 比重 | 1.11 |
| 折射率 | 1.57 |
GHS
| 象形图 |
|
| 信号词 | Danger |
| 危险性说明 | H302 + H312 + H332 : Harmful if swallowed, in contact with skin or if inhaled. H314 : Causes severe skin burns and eye damage. H290 : May be corrosive to metals. |
| 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. P234 : Keep only in original container. 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. P390 : Absorb spillage to prevent material damage. P362 + P364 : Take off contaminated clothing and wash it before reuse. 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. P301 + P312 + P330 : IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth. 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. P406 : Store in corrosive resistant container with a resistant inner liner. P405 : Store locked up. |
相关法规
运输信息
| UN编号 | UN2987 |
| 类别 | 8 |
| 包装类别 | II |
| HS编码* | 2931.90-000 |
应用
Protection of Alcohols
Typical Procedure:
A solution of cyclohexylmethanol (3.00 g, 26.3 mmol) in DMF (26 mL) and imidazole (3.934 g, 57.8 mmol) is placed in a three-necked, 100 mL flask fitted with a magnetic stirrer, addition funnel, and a nitrogen inlet. The addition funnel is then charged with diphenylmethylsilyl (DPMS) chloride (6.727 g, 28.9 mmol). Dropwise addition of the DPMS chloride takes 1 h, and after an additional hour of being stirred the reaction is complete (determined by GC). The reaction mixture is then poured into a separatory funnel containing water (100 mL), and the resulting solution is extracted with ether (3 × 200 mL). The individual ether layers are washed with water (150 mL) and saturated brine, combined, dried over Na2SO4, and evaporated to give a yellow oil (8.40 g). The oil is fractionally distilled [bp 155 °C (0.3 torr)], yielding the product (7.09 g, Y. 87%).
A solution of cyclohexylmethanol (3.00 g, 26.3 mmol) in DMF (26 mL) and imidazole (3.934 g, 57.8 mmol) is placed in a three-necked, 100 mL flask fitted with a magnetic stirrer, addition funnel, and a nitrogen inlet. The addition funnel is then charged with diphenylmethylsilyl (DPMS) chloride (6.727 g, 28.9 mmol). Dropwise addition of the DPMS chloride takes 1 h, and after an additional hour of being stirred the reaction is complete (determined by GC). The reaction mixture is then poured into a separatory funnel containing water (100 mL), and the resulting solution is extracted with ether (3 × 200 mL). The individual ether layers are washed with water (150 mL) and saturated brine, combined, dried over Na2SO4, and evaporated to give a yellow oil (8.40 g). The oil is fractionally distilled [bp 155 °C (0.3 torr)], yielding the product (7.09 g, Y. 87%).
References
- Diphenylmethylsilyl ether (DPMS): a protecting group for alcohols
参考文献