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CAS RN: 72773-04-7 | 产品编码: B3920
1H-Benzotriazole-1-carboxaldehyde
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| 产品编码 | B3920 |
纯度/分析方法 
|
>95.0%(GC) |
| 分子式/分子量 | C__7H__5N__3O = 147.14 |
| 外观与形状（20°C） | 固体 |
| 储存温度
|
冷藏 (0-10°C) |
| 储存在惰性气体下 | 存放于惰性气体之中 |
| 应避免的情况 | 空气,加热 |
| 包装和容器
|
1G-Glass Bottle with Plastic Insert （查看图片） |
| CAS RN | 72773-04-7 |
| Reaxys-RN | 510150 |
| PubChem物质ID | 172089012 |
| MDL编号 | MFCD00239420 |
技术规格
| Appearance | White to Almost white powder to crystal |
| Purity(GC) | min. 95.0 % |
| Melting point | 94.0 to 98.0 °C |
| NMR | confirm to structure |
物性（参考值）
| 熔点 | 97 °C |
GHS
| 象形图 |
|
| 信号词 | Warning |
| 危险性说明 | H315 : Causes skin irritation. H319 : Causes serious eye irritation. |
| 防范说明 | 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. |
相关法规
运输信息
| HS编码* | 2933.99-000 |
应用
N-Formylation Reaction
Typical Procedure:
A solution of amine 1 (1.42 g, 3.86 mmol) in THF (84 mL) is treated with 1H-benzotriazole-1-carboxaldehyde (738 mg, 5.02 mmol). The mixture is stirred for 20 h at rt then 2N NaOH aqueous solution is added. The solution is stirred for 15 min at rt then water is added and THF is removed under reduced pressure. The aqueous phase is extracted with dichloromethane, and the combined organic layer is dried over MgSO4, filtered and concentrated under reduced pressure. The residue is purified by silica gel flash chromatography (Hexane → Hexane : AcOEt = 3 : 2) to give 2 (1.02 g, Y. 67%) as a colorless oil.
A solution of amine 1 (1.42 g, 3.86 mmol) in THF (84 mL) is treated with 1H-benzotriazole-1-carboxaldehyde (738 mg, 5.02 mmol). The mixture is stirred for 20 h at rt then 2N NaOH aqueous solution is added. The solution is stirred for 15 min at rt then water is added and THF is removed under reduced pressure. The aqueous phase is extracted with dichloromethane, and the combined organic layer is dried over MgSO4, filtered and concentrated under reduced pressure. The residue is purified by silica gel flash chromatography (Hexane → Hexane : AcOEt = 3 : 2) to give 2 (1.02 g, Y. 67%) as a colorless oil.
References
- Synthesis of the tetracyclic core of daphnilactone B-type and Yuzurimine-type alkaloids
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