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CAS RN: 814-29-9 | 產品號碼: T0921
Tributylphosphine Oxide
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| 產品號碼 | T0921 |
| 純度/分析方法 | >95.0%(GC) |
| 分子式 / 分子量 | C__1__2H__2__7OP = 218.32 |
| 外觀與形狀（20°C） | Solid |
| 儲存條件 | Room Temperature (Recommended in a cool and dark place, <15°C) |
| 儲存在惰性氣體下 | Store under inert gas |
| 應避免的情況 | Hygroscopic |
| CAS RN | 814-29-9 |
| Reaxys-RN | 1761977 |
| PubChem Substance ID | 87576741 |
| SDBS (AIST Spectral DB) | 15762 |
| MDL編號 | MFCD00002082 |
產品規格
| Appearance | White to Almost white powder to crystal |
| Purity(GC) | min. 95.0 % |
性質
| 熔點 | 71 °C |
| 溶解性（可溶於） | Methanol |
GHS
| 圖形表示 |
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| 信號詞 | Danger |
| 危險性說明 | H302 + H312 + H332 : Harmful if swallowed, in contact with skin or if inhaled. H314 : Causes severe skin burns and eye damage. |
| 防範說明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P260 : Do not breathe dusts or mists. 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. 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. P405 : Store locked up. |
相關法規
| RTECS # | SZ1575000 |
運輸資料
| UN編號 | UN1759 |
| 類別 | 8 |
| 包裝類別 | III |
| HS編碼* | 2931.49-900 |
Application
TCI Practical Example: Regioselective Silylation of an Unprotected Carbohydrate Using the Boronic Acid and the Phosphine Oxide
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Used Chemicals
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Procedure
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To a solution of methyl α-L-fucopyranoside (356 mg, 2 mmol), 4-(dimethylamino)phenylboronic acid (66 mg, 0.4 mmol, 0.2 equiv), tributylphosphine oxide (87 mg, 0.2 mmol, 0.2 equiv) and DIPEA (517 mg, 0.68 mL, 4.0 mmol, 2.0 equiv) in acetonitrile (10 mL) was added TBDPSCl (1.10 g, 1.03 mL, 4.0 mmol, 2.0 equiv) at rt and the mixture was stirred at 60 °C. After 24 h, methanol (1 mL) was added to the reaction mixture and the solvent was removed under reduced pressure. The residue was purified by column chromatography (ethyl acetate:hexane = 0:1 - 1:1 on silica gel) to give 1 as a colorless oil (510 mg，y. 61%).
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Experimenter’s Comments
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The reaction mixture was monitored by TLC (ethyl acetate:hexane = 1:1, Rf = 0.59).
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Analytical Data
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Compound 1
1H NMR (400 MHz, CDCl3); δ 7.75-7.67 (m, 4H), 7.48-7.36 (m, 6H), 4.68 (d, 1H, J = 3.2 Hz), 3.93-3.80 (m, 2H), 3.68 (brq, 1H, J = 6.5 Hz), 3.44-3.43 (m, 1H), 3.29 (s, 3H), 2.55 (brs, 1H), 1.53 (d, 1H, J = 8.9 Hz), 1.22 (d, 3H, J = 6.8 Hz), 1.10 (s, 9H).
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Lead Reference
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- Regioselective silylation of pyranosides using a boronic acid / Lewis base co-catalyst system
考研文獻
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產品規格
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