that has considerable potential with regard to catalysis and the direct incorporation of functionality not amenable to the use of enolate chemistry. Herein, we describe the first Cu(I)-catalyzed addition of Grignard reagents to in situ-derived N-sulfonyl azoalkenes. This method is remarkable in its ability to deliver highly sterically hindered compounds that would be difficult or impossible to synthesize
N-磺酰腙的 α-烷基化通过原位衍生的偶氮烯烃提供了酮 α-烷基化的 umpolung 方法,该方法在催化和直接结合不适合使用烯醇
化学的官能团方面具有相当大的潜力。在此,我们描述了首次在 Cu(I) 催化下将
格氏试剂添加到原位衍生的 N-磺酰基偶氮烯烃中。这种方法能够提供通过传统烯醇
化学难以或不可能合成的高度位阻化合物,包括具有多达三个连续四元中心的化合物。