A New Synthesis of Imidazolidin-2-ones via Pd-Catalyzed Carboamination of <i>N</i>-Allylureas
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A new strategy for the preparation of substituted imidazolidin-2-ones in two steps from readily available N-allylamines is described. Addition of the amine starting materials to isocyanates affords N-allylureas, which are converted to imidazolidin-2-one products with generation of two bonds and up to two stereocenters when treated with aryl bromides and catalytic amounts of Pd2(dba)3/Xantphos in the presence of NaOtBu.
创建时间：
2016-03-01
