Practical modifications and applications of the sharpless asymmetric aminohydroxylation in the one-pot preparation of chiral oxazolidin-2-ones

被引:44
作者
Barta, NS [1 ]
Sidler, DR [1 ]
Somerville, KB [1 ]
Weissman, SA [1 ]
Larsen, RD [1 ]
Reider, PJ [1 ]
机构
[1] Merck & Co Inc, Merck Res Labs, Dept Proc Res, Rahway, NJ 07065 USA
关键词
D O I
10.1021/ol006255z
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Chiral oxazolidin-2-ones are synthetically valuable as chiral auxiliaries, and many have pharmaceutically interesting biological activity. This communication focuses on a convenient, practical one-pot preparation of chiral 4,5-disubstituted oxazolidan-2-ones in good yield with high enantioselectivities, using a modified Sharpless asymmetric aminohydroxylation of beta-substituted styrene derivatives followed by base-mediated ring closure. This procedure has been demonstrated on both small and large scale, utilizing 1,3 dichloro-5,5 dimethyl hydantoin as an easily handled, commercially available substitute for tert-butyl hypochlorite.
引用
收藏
页码:2821 / 2824
页数:4
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