作者:Xiu-Fang Cao、Ming Hu、Fei Li、Wen-Chang Lu、Guang-Ao Yu、Sheng-Hua Liu
DOI:10.1002/hlca.200800375
日期:2009.5
Abstractmagnified imageA highly enantioselective approach towards the synthesis of β‐substituted chiral ketones by utilizing Grignard reagents was achieved. The (R)‐ and (S)‐antipodes of the target chiral ketones 2a–2k were obtained with up to 100% ee from chiral N‐alkanoylcamphorsultams 1 (Scheme, Table 2). This simple, catalyst‐free, direct procedure for the formation of chiral ketones is a fascinating method for the practical syntheses of chiral synthons as valuable building blocks and important medicinal intermediates.