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Chin. J. Org. Chem. ›› 2007, Vol. 27 ›› Issue (05): 602-606. Previous Articles Next Articles
Original Articles
金瑛，姚志军，张生勇，姜茹，孙晓莉*
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JIN Ying, YAO Zhi-Jun, ZHANG Sheng-Yong, JIANG Ru, SUN Xiao-Li*
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A reusable free cinchona alkaloid derivative ligand was applied to asymmetric dihydroxylation (AD) of 9 olefins with 85%～＞99% ee and 82%～91% yields. It was also applied to asymmetric aminohy-droxylation (AA) of 5 olefins with 76%～＞99% ee and 50%～72% yields. Two different methods for recycling ligand were tried in AD and AA reactions, respectively. The results showed that these two methods were effective in recovering and reusing the ligand.
Key words: chiral aminoalcohol, AD reaction, chiral diol, AA reaction, recycle, reusable free ligand
JIN Ying, YAO Zhi-Jun, ZHANG Sheng-Yong, JIANG Ru, SUN Xiao-Li*. Application of Recyclable Ligand [QN(OH)2]2PYDZ to Asymmetric Dihy-droxylation and Asymmetric Aminohydroxylation of Olefins[J]. Chin. J. Org. Chem., 2007, 27(05): 602-606.
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