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Org Lett. 2013 Jan 4;15(1):3-5. doi: 10.1021/ol303053c. Epub 2012 Dec 5.
A novel Claisen rearrangement in which the Breslow intermediate is engaged as a hydroxy-substituted N,S-ketene acetal to provide complex 3° alcohols without the use of organometallic reagents is reported. The reaction constitutes an unprecedented reactivity mode for the Breslow intermediate.
报告了一种新型的 Claisen 重排反应,其中 Breslow 中间体作为羟基取代的 N,S-酮缩醛参与反应,提供了复杂的 3°醇,而无需使用有机金属试剂。该反应构成了 Breslow 中间体前所未有的反应模式。