Direct proline-catalyzed asymmetric α-aminoxylation of aldehydes and ketones

被引:141
作者
Hayashi, Y [1 ]
Yamaguchi, J [1 ]
Sumiya, T [1 ]
Hibino, K [1 ]
Shoji, M [1 ]
机构
[1] Sci Univ Tokyo, Fac Engn, Dept Ind Chem, Shinjuku Ku, Tokyo 1628601, Japan
关键词
D O I
10.1021/jo049338s
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The direct proline-catalyzed asymmetric alpha-aminoxylation of aldehydes and ketones has been developed using nitrosobenzene as an oxygen source, affording alpha-anilinoxy-aldehydes and -ketones with excellent enantioselectivity. Reaction conditions have been optimized, and low temperature (-20 degreesC) was found to be a key for the successful alpha-aminoxylation of aldehydes, while slow addition of nitrosobenzene is essential for that of ketones. The scope of the reaction is presented.
引用
收藏
页码:5966 / 5973
页数:8
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