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CAS RN: 119812-51-0 | 产品编码: P1235
Phthalimide DBU Salt
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技术规格
Appearance | White to Almost white powder to crystal |
Purity(Nonaqueous Titration) | min. 98.0 % |
物性(参考值)
熔点 | 142 °C |
GHS
象形图 |
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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
Introduction of Phthalimide Group
Experimental procedure:
A solution of 1 (11.0 g, 63.9 mmol) in dichloromethane (50 mL) is added dropwise over a period of 1 h, to a cold (0 °C) solution of 2 (15.0 g, 51.0 mmol) dissolved in dichloromethane (200 mL). After additional 2 h at 0 °C the reaction mixture is washed with ice-cold 1 mol/L H2SO4 (3 x 100 mL) and water (100 mL). After being dried over MgSO4, the solution is concentrated to a yellow oil (14.4 g) at reduced pressure. The oil is further dried on an oil pump after which addition of diethyl ether (200 mL) gives a precipitate of 4 after the solution has been allowed to stand for 3 days at -18 °C. The yield is 3.40 g (21%). The mother liquid is purified by flash chromatography (diethyl ether:hexane = 7:3) to give 3 (6.11 g, 30% yield).
A solution of 1 (11.0 g, 63.9 mmol) in dichloromethane (50 mL) is added dropwise over a period of 1 h, to a cold (0 °C) solution of 2 (15.0 g, 51.0 mmol) dissolved in dichloromethane (200 mL). After additional 2 h at 0 °C the reaction mixture is washed with ice-cold 1 mol/L H2SO4 (3 x 100 mL) and water (100 mL). After being dried over MgSO4, the solution is concentrated to a yellow oil (14.4 g) at reduced pressure. The oil is further dried on an oil pump after which addition of diethyl ether (200 mL) gives a precipitate of 4 after the solution has been allowed to stand for 3 days at -18 °C. The yield is 3.40 g (21%). The mother liquid is purified by flash chromatography (diethyl ether:hexane = 7:3) to give 3 (6.11 g, 30% yield).
References
- Synthesis and Evaluation of Antiviral Activity of L-Acosamine and L-Ristosamine Nucleosides of Furanose Configuration
应用
Useful Aminating Reagent
References
- Michael-type additions to α,β-unsaturated aldehydes
- J. Wengel, J. Lau, E. B. Pedersen, Synthesis 1989, 829.
- H. Petersen, M. S. Motawia, E. S. Andreassen, J. P. Jacobsen, E. B. Pedersen, Chem. Scr. 1988, 28, 341.
- J. Wengel, J. Lau, E. B. Pedersen, Synthesis 1989, 829.
参考文献
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