Regioselective C-arylation and C,N-diarylation in 2-aryl-2,3-dihydrophthalazine-1,4-diones have been successfully accomplished with diaryliodonium salts under base-mediated slightly modified Pd-catalyzed conditions. These ligand-driven transformations provided a variety of diversely decorated bi(hetero)aryls in good-to-excellent yields, while N-arylated product could be obtained under similar Pd-catalyzed conditions in absence of a ligand.
在碱介导的略微改良的钯催化条件下,利用二芳基碘鎓盐成功完成了 2-芳基-2,3-二氢酞嗪-1,4-二酮的区域选择性 C 芳基化和 C,N-二芳基化。这些配体驱动的转化提供了各种不同装饰的双(杂)芳基,收率从良好到极佳,而在类似的钯催化条件下,在没有配体的情况下也能获得 N-芳基化产物。