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CAS RN: 152120-55-3 | 產品號碼: B3605
N,N'-Bis(carbobenzoxy)-1H-pyrazole-1-carboxamidine
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纯度/分析方法: >98.0%(T)(HPLC)
別名
- N,N'-Bis(benzyloxycarbonyl)-1H-pyrazole-1-carboxamidine
- N,N'-Di-Cbz-1H-pyrazole-1-carboxamidine
- 1-[N,N'-Bis(carbobenzoxy)amidino]pyrazole
- 1-[N,N'-(Di-Cbz)amidino]pyrazole
- N,N'-Bis(carbobenzoxy)-1H-pyrazole-1-carboximidamide
- N,N'-Di-Cbz-1H-pyrazole-1-carboximidamide
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文件：
| 包裝 | 價格 | 同一天 | 2-3个工作日 |
|---|---|---|---|
| 1G |
NT$1,800
|
17 | 4 |
| 5G |
NT$6,160
|
4 | 5 |
* 以上價格已含運費關稅等但一些需要海運以及乾冰運輸的產品除外,詳情請與
當地經銷商
洽詢。
* 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。
| 產品號碼 | B3605 |
| 純度/分析方法 | >98.0%(T)(HPLC) |
| 分子式 / 分子量 | C__2__0H__1__8N__4O__4 = 378.39 |
| 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 | 152120-55-3 |
| Reaxys-RN | 6160514 |
| PubChem Substance ID | 125307472 |
| MDL編號 | MFCD02683516 |
產品規格
| Appearance | White to Almost white powder to crystal |
| Purity(HPLC) | min. 98.0 area% |
| Purity(Neutralization titration) | min. 98.0 % |
| Melting point | 91.0 to 95.0 °C |
性質
| 熔點 | 93 °C |
GHS
| 圖形表示 |
|
| 信號詞 | Warning |
| 危險性說明 | H315 : Causes skin irritation. H319 : Causes serious eye irritation. |
| 防範說明 | P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ eye protection/ face protection. P302 + P352 : IF ON SKIN: Wash with plenty of water. P337 + P313 : If eye irritation persists: Get medical advice/ attention. P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P362 + P364 : Take off contaminated clothing and wash it before reuse. P332 + P313 : If skin irritation occurs: Get medical advice/ attention. |
相關法規
運輸資料
| HS編碼* | 2933.19-000 |
Application
TCI Practical Example: Di-Cbz Guanidinylation of Amine Using the Pyrazole Derivative
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Used Chemicals
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Procedure
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A solution of 4-bromophenethylamine (200 mg, 1.00 mmol) and 1-[N,N'-(di-Cbz)amidino]pyrazole (416 mg, 1.10 mmol) in THF (1.7 mL) was stirred at ambient temperature for one day. The reaction mixture was concentrated and the residue was purified by column chromatography (ethyl acetate:hexane = 0:100 – 10:90 on silica gel) to give the guanidinylated compound 1 as a pale yellow oil (435 mg, 85% yield.).
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Experimenter’s Comments
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The reaction mixture was monitored by TLC (ethyl acetate:hexane = 1:3, Rf = 0.45).
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Analytical Data
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Guanidinylated Compound 1
1H NMR (270 MHz, DMSO-d6); δ 11.58 (s, 1H), 8.44 (t, J = 6.4 Hz, 1H), 7.49-7.31 (m, 12H), 7.18 (d, J = 8.1 Hz, 2H), 5.20 (s, 2H), 5.04 (s, 2H), 3.55 (brq, J = 6.4 Hz, 2H), 2.80 (t, J = 6.4 Hz, 2H)
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Lead Reference
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- Urethane protected derivatives of 1-guanylpyrazole for the mild and efficient preparation of guanidines
Application
Synthesis of monosubstituted guanidines
Typical procedure (synthesis of bis-Cbz guanidine derivative): To the 1-guanylpyrazole derivative (B3605, 378 mg) was added aniline (102 mg) followed by dry THF (0.4 mL) and the resulting mixture was stirred for 22 h at room temperature. The reaction mixture was purified by column chromatography to give the bis-Cbz guanidine derivative as an oil (379 mg, 94 %).
References
考研文獻
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