Metalated Aziridines for Cross-Coupling with Aryl and Alkenyl Halides via Palladium Catalysis
作者:John M. Nelson、Edwin Vedejs
DOI:10.1021/ol101904a
日期:2010.11.19
The palladium-catalyzed coupling of an aziridinylzinc chloride intermediate with alkenyl and arylhalides has been demonstrated. The method provides products with retention of aziridine stereochemistry. The utility of the coupling procedure is illustrated in the synthesis of structures related to l-furanomycin.
An aziridinyl stannatrane 8 couples with aryl or alkenyl halides RX under modified Stille conditions to afford substituted aziridines. Efficient coupling at room temperature is possible in the best examples in the presence of (tBu3P)2Pd and CuOP(O)Ph2 (CuDPP).
在改良的Stille条件下,将叠氮基烷基锡烷8与芳基或烯基卤化物RX偶合,得到取代的氮丙啶。在(t Bu 3 P)2 Pd和CuOP(O)Ph 2(CuDPP)存在的最佳示例中,室温下的有效耦合是可能的。