手性阳离子钯-膦基恶唑烷催化剂在离子液体中的再利用：高效催化不对称狄尔斯-阿尔德反应
Reuse of chiral cationic Pd-phosphinooxazolidine catalysts in ionic liquids: highly efficient catalytic asymmetric Diels-Alder reactions.
作者信息
Takahashi Kouichi, Nakano Hiroto, Fujita Reiko
机构信息
Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Sendai 981-8558, Japan.
出版信息
Chem Commun (Camb). 2007 Jan 21(3):263-5. doi: 10.1039/b611228e. Epub 2006 Oct 25.
DOI:10.1039/b611228e
PMID:17299633
Abstract
Chiral cationic palladium-phosphinooxazolidine catalysts in ionic liquid afforded excellent enantioselectivity in Diels-Alder reactions and the catalyst was easily recycled eight times without any significant decrease in chemical yields or enantioselectivity (89-99%, 88-99% ee).
摘要
离子液体中的手性阳离子钯-膦基恶唑烷催化剂在狄尔斯-阿尔德反应中表现出优异的对映选择性，并且该催化剂易于循环使用八次，而化学产率或对映选择性均无显著降低（产率89-99%，对映体过量值88-99%）。
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