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CAS RN: 3375-31-3 | 產品號碼: R0303
Pd(OAc)2 (HPMC encapsulated)
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* TCI會時常優化儲存條件,儲存溫度請以在線目錄為準，敬請留意。
補充產品訊息:
Contents (per one capsule)
- Pd(OAc)2 ca. 0.500 mmol
Uses of Reagent
- Applicable to palladium-catalyzed reactions due to a palladium catalyst encapsulated in HPMC capsules
Soluble Solvents
- Water, DMSO, DMF, 1,4-Dioxane (50°C), THF/Water mixture, 1,2-Dimethoxyethane/Water mixture
Related Product
- A1424 Palladium(II) Acetate
| 產品號碼 | R0303 |
| 分子式 / 分子量 | C__4H__6O__4Pd = 224.51 |
| 外觀與形狀（20°C） | Solid |
儲存條件 
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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 | 3375-31-3 |
產品規格
| Appearance | White to Light gray capsule |
| Functionality test (conversion ratio) | min.90.0 % |
性質
GHS
| 圖形表示 |
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| 信號詞 | Danger |
| 危險性說明 | H318 : Causes serious eye damage. H317 : May cause an allergic skin reaction. H410 : Very toxic to aquatic life with long lasting effects. |
| 防範說明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P261 : Avoid breathing dust. P273 : Avoid release to the environment. P272 : Contaminated work clothing should not be allowed out of the workplace. P280 : Wear protective gloves/ eye protection/ face protection. P302 + P352 : IF ON SKIN: Wash with plenty of water. P391 : Collect spillage. P362 + P364 : Take off contaminated clothing and wash it before reuse. P333 + P313 : If skin irritation or rash occurs: Get medical advice/ attention. 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. |
相關法規
運輸資料
| UN編號 | UN3077 |
| 類別 | 9 |
| 包裝類別 | III |
| HS編碼* | 3822.19-000 |
Application
TCI Practical Example: The Mizoroki-Heck Reaction Using the Encapsulated Pd(OAc)2
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Used Chemicals
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Procedure
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Pd(OAc)2 (HPMC encapsulated) (one capsule) was added to a solution of 2-bromobenzaldehyde (925 mg, 5.0 mmol), tripotassium phosphate hydrate (1.59 g, 7.5 mmol, 1.5 eq.) and styrene (1.56 g, 15 mmol, 3.0 eq.) in DMF (5 mL) at room temperature and the reaction mixture was stirred at 150 °C for 3 hours. The solution was then diluted with ethyl acetate (15 mL) and sat. Na2SO4 aq. (15 mL), and filtered through Celite pad and the filtrate was extracted with ethyl acetate (15 mL x 2). The organic layer was washed with water (15 mL) and brine (10 mL), dried over sodium sulfate and concentrated under reduced pressure. The crude product was purified by silica gel chromatography (hexane:dichloromethane = 1:0 - 1:4) to afford (E)-2-styrylbenzaldehyde (880 mg, 85% yield) as a pale yellow oil.
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Experimenter’s Comments
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The reaction mixture was monitored by GC.
The material of the capsule is water-soluble HPMC (hydroxypropyl methylcellulose).
The shape of the capsule is like the image below and Pd(OAc)2 (ca. 500 μmol) is encapsulated in each capsule.
The capsule disintegrates as shown in the image below when stirred in the solvent for about 15 minutes, releasing its content.
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Analytical Data
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(E)-2-Styrylbenzaldehyde
1H NMR (400 MHz, CDCl3); δ 10.33 (s, 1H), 8.06 (d, J = 16.0 Hz, 1H), 7.85 (d, J = 7.6 Hz, 1H), 7.74 (d, J = 8.0 Hz, 1H) 7,61-7.56 (m, 3H), 7.45 (t, J = 7.2 Hz, 1H), 7.41-7.38 (m, 2H), 7.33-7.29 (m, 1H) 7.07 (d, J = 16.0 Hz, 1H).
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Lead Reference
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- Reagent and Catalyst Capsules: A Chemical Delivery System for Reaction Screening and Parallel Synthesis
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Other References
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- HPMC: A Biomass-Based Semisynthetic Sustainable Additive Enabling Clean and Fast Chemistry in Water
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