| TCI产品编码 : | C2422 | ||||||||||||||
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| 库存情况 : |
2012年02月08号上午06点的情况 *2012年4月前，中国库存将暂时显示上海仓库和天津仓库的库存总和。 |
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| 纯度 / 分析方法 : | >97.0%(T) | ||||||||||||||
| 保存温度 : | Freezer | ||||||||||||||
| 分子式 / 分子量 : | C21H24ClCuN2=403.43 | ||||||||||||||
| CAS编码 : | 873779-78-3 | ||||||||||||||
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| 国内危险化学品编码 : | |||||||||||||||
(IMes)-copper complex catalyzed methylenation of cinnamaldehydes Typical procedure (R = H): To a solution of (IMes)-Cu complex catalyst (20.2 mg) and triphenylphosphine (288 mg) in dioxane (10 mL) at 25 ºC is added 2-propanol (84 micro-L) followed by trans-cinnamaldehyde (132 mg) and the trimethylsilyldiazomethane solution (1.4 – 2.0 mmol) under inert atmosphere. The resulting mixture is then heated at 60 ºC for 2 h. Afterward, 3% H2O2 (10 mL) is added and the organic layer is extracted with ether (3 x 20 mL). The combined organic layers are washed with brine (2 x 20 mL) and dried over MgSO4. The filtrate is removed under reduced pressure and the residue is purified by flash chromatography on silica gel (eluent: 1% EtOAc/hexanes) to give 1-phenyl-1,3-butadiene (100 mg, 77%) as a colorless oil. |
| 相关分类 : |
Structure of Chemicals
Classes of Metal Compounds
Transition Metal Compounds
Cu (Copper) Compounds
Synthetic Organic Chemistry Catalysts for Organic Synthesis Homogeneous Catalysts Copper |
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