We report an efficient Pd(0)-catalyzed deacylative allylation of N-acyl 3-substituted 2-oxindoles via the coupling of in situ generated nucleophiles (3 and 4) with allyl electrophiles for the synthesis of a variety of 2-oxindoles with C3-quaternary centers. Gratifyingly, this alkylation process is found to be highly chemoselective in nature, where a C–C bond formation is completely predominant over
我们报告了通过原位生成的亲核试剂(3和4)与烯丙基亲电试剂的偶联,N-酰基3-取代的2-氧
吲哚的有效Pd(0)催化的脱酰基烯丙基化,用于合成各种2-C3的2-氧
吲哚-四元中心。令人欣慰的是,这种烷基化过程本质上具有高度
化学选择性,其中C–C键的形成完全比C–N键的形成更为主要。利用上述方法合成了多种关键中间体。