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CAS RN: 76-83-5 | 產品號碼: C0308
Trityl Chloride
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產品規格
| Appearance | White to Light yellow powder to crystal |
| Purity(Argentometric Titration) | min. 98.0 % |
| Melting point | 110.0 to 115.0 °C |
性質
| 熔點 | 113 °C |
| 沸點 | 310 °C |
| 溶解性（可溶於） | Acetone |
| 溶解性（微溶於） | Alcohol |
GHS
| 圖形表示 |
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| 信號詞 | Danger |
| 危險性說明 | H314 : Causes severe skin burns and eye damage. H290 : May be corrosive to metals. |
| 防範說明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P260 : Do not breathe dusts or mists. P234 : Keep only in original container. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection. P390 : Absorb spillage to prevent material damage. 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. P406 : Store in corrosive resistant container with a resistant inner liner. P405 : Store locked up. |
相關法規
| RTECS # | PA6450000 |
運輸資料
| UN編號 | UN3261 |
| 類別 | 8 |
| 包裝類別 | III |
| HS編碼* | 2903.99-000 |
Application
TCI Practical Example: Selective Protection of a Primary Alcohol by Using Trityl Chloride
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Used Chemicals
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Procedure
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To a solution of 1,2-O-isopropylidene-α-D-xylofuranose (200 mg, 1.1 mmol) in dichloromethane (2 mL) was added triethylamine (0.22 mL, 1.6 mmol) and stirred at room temperature for 1 hour. A solution of trityl chloride (323 mg, 1.2 mmol) in dichloromethane (1 mL) was added to the reaction mixture and stirred at room temperature for 3 hours. The reaction mixture was quenched with water and extracted with dichloromethane. The organic phase was dried over anhydrous sodium sulfate and filtered. The solvent was removed under reduced pressure and the residue was purified by silica gel column chromatography (ethyl acetate:hexane = 1:4, Rf = 0.15) to give 1 as a white solid (432 mg, 95% yield).
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Experimenter’s Comments
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The reaction mixture was monitored by TLC (ethyl acetate:hexane = 1:4, Rf = 0.15).
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Analytical Data
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1,2-O-Isopropylidene-5-O-trityl-α-D-xylofuranose (1)
1H NMR (270 MHz, CDCl3); δ 7.46-7.22 (m, 15H), 6.01 (d, J = 3.8 Hz, 1H), 4.53 (d, J = 3.8 Hz, 1H), 4.27-4.25 (m, 2H), 3.57 (dd, J = 10.3, 5.1 Hz, 1H), 3.49 (dd, J = 10.3, 5.1 Hz, 1H), 3.16 (d, J = 2.7 Hz, 1H), 1.49 (s, 3H), 1.33 (s, 3H).
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Lead Reference
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- Karrikins from plant smoke modulate bacterial quorum sensing
考研文獻
TCIMail
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