A novel decarbonylative coupling of α-keto acids and ynamides with extrusion of CO for synthesis of β-keto imides is reported. This process features mild reaction conditions, a broad substrate scope, and high efficiency. An isotope-labeling reaction and GC analysis were conducted to elucidate a plausible reaction mechanism.

中文翻译：

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α-酮酸和亚酰胺的脱羰偶联反应合成β-酮酰亚胺

报道了一种新颖的α-酮酸和乙酰胺的脱羰偶合与CO的挤出以合成β-酮亚胺的方法。该工艺的特点是反应条件温和，底物范围广，效率高。进行了同位素标记反应和GC分析，以阐明可能的反应机理。