A novel palladium-catalyzed oxidative C-H functionalization protocol for the synthesis of (2-oxoindolin-3-ylidene)methyl acetates has been developed. In the presence of Pd(OAc)2 and PhI(OAc)2, a variety of N-arylpropiolamides underwent the C-H functionalization reaction with acids to afford the corresponding (E)-(2-oxoindolin-3-ylidene)methyl acetates selectively in moderate to excellent yields.

中文翻译：

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（2-氧代吲哚-3-亚甲基）乙酸甲酯的合成涉及CH官能化过程。

开发了一种新型的钯催化的氧化CH官能化方案，用于合成（2-氧代吲哚-3-亚基）乙酸甲酯。在Pd（OAc）2和PhI（OAc）2的存在下，各种N-芳基丙酰胺与酸进行CH官能化反应，从而选择性地提供相应的（E）-（2-氧代吲哚-3-亚基）甲基乙酸酯中等至极好的产量。