ureas has been developed. This one‐pot one‐step cascade procedure is consisted by three individual processes: carbonylation, Curtius rearrangement, and nucleophilic addition. A series of unsymmetrical ureas were prepared from easily available aryl iodides and amines in moderate to excellent yields. This procedure provides a convenient and practical approach for unsymmetrical urea synthesis.
已经开发了
钯催化的羰基化合成不对称
脲的方法。这一单锅一步式级联过程由三个独立的过程组成:羰基化,Curtius重排和亲核加成。由易得的芳基
碘化物和胺以中等到极好的收率制备了一系列不对称
脲。该程序为不对称
尿素合成提供了方便实用的方法。