Access to Spirocyclic Oxindoles via N-Heterocyclic Carbene-Catalyzed Reactions of Enals and Oxindole-Derived α,β-Unsaturated Imines
作者:Kun Jiang、Bhoopendra Tiwari、Yonggui Robin Chi
DOI:10.1021/ol3008028
日期:2012.5.4
A diastereoselective access to beta-lactam fused spirocyclic oxindoles and related compounds bearing all carbon spiro centers is described. This N-heterocyclic carbene-catalyzed process employed challenging beta,beta-disubstituted alpha,beta-unsaturated imines to react with enals.
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