A new palladium-catalyzed C–H bond activation–annulation–amination tandem method was presented for selectively synthesizing 3-(aminomethylene)-2-oxoindolines. In the presence of Pd(dba)2, xantphos (L8), AgOAc and Na2CO3, a variety of 3-chloro-2-iodo-N-arylacrylamides underwent the reaction with amides or amines to afford the corresponding 3-(aminomethylene)-2-oxoindolines in moderate to good yields.
本研究提出了一种新的
钯催化 C-H 键活化-annulation-层析串联方法,用于选择性合成 3-(
氨基亚甲基)-2-氧代
吲哚啉。在 Pd(dba)2、xantphos (L8)、AgOAc 和 Na2CO3 的存在下,多种 3-
氯-2-
碘-N-芳基
丙烯酰胺与酰胺或胺发生反应,得到相应的 3-(
氨基亚甲基)-2-氧代
吲哚啉,收率中等至良好。