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CAS RN: 145013-05-4 | 產品號碼: B4559
1,3-Bis(tert-butoxycarbonyl)thiourea
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| 產品號碼 | B4559 |
純度/分析方法 
|
>98.0%(N) |
| 分子式 / 分子量 | C__1__1H__2__0N__2O__4S = 276.35 |
| 外觀與形狀（20°C） | Solid |
| 儲存條件
|
Room Temperature (Recommended in a cool and dark place, <15°C) |
| 包裝和容器
|
1G-Glass Bottle with Plastic Insert （閲覽圖片） |
| CAS RN | 145013-05-4 |
| Reaxys-RN | 5815972 |
| PubChem Substance ID | 253660653 |
| MDL編號 | MFCD03093917 |
產品規格
| Appearance | White to Almost white powder to crystal |
| Purity(with Total Nitrogen) | min. 98.0 % |
性質
| 熔點 | 132 °C(dec.) |
GHS
相關法規
運輸資料
| HS編碼* | 2930.90-900 |
Application
A Guanidinylating Reagent without Using Mercury Salts
To a solution of starting amine (1 mmol) in dichloromethane (5 mL) at rt are added 1,3-bis(tert-butoxycarbonyl)thiourea (1.05 mmol) and triethylamine (3 mmol). Under stirring, copper(II) chloride (1.05 mmol) is added and the reaction is stirred at rt until adjudged complete by TLC analysis. The reaction is diluted with EtOAc (30 mL) and filtered through a pad of celite. The filtrate is washed with brine (30 mL) and water (30 mL) and dried using anhydrous MgSO4. Filtration and removal of solvent under reduced pressure yields a residue which is purified by silica gel chromatography using gradient elution (hexane : EtOAc). Removal of solvents under vacuum affords the product.
References
- Copper(II) chloride promoted transformation of amines into guanidines and asymmetrical N,N’-disubstituted guanidines
考研文獻
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