A new family of phosphine-free, air and moisture stable ligand are developed for coupling reaction. The synthesised ligand efficiently catalyzed the coupling reaction with PdCl_2. The main advantage of the developed protocol is the tolerance of wide substrate including sterically hindered substrates, low ligand loading and short reaction time with good-to-excellent yield.

中文翻译：

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基于 Chroman-4-one 的氨基双齿配体：一种在水性介质中进行 Suzuki-Miyaura 和 Mizoroki-Heck 偶联反应的有效配体

为偶联反应开发了一个新的不含膦、空气和水分稳定的配体系列。合成的配体有效地催化了与 PdCl ₂的偶联反应。所开发的协议的主要优点是对宽底物的耐受性，包括空间位阻底物、低配体负载和短反应时间，产率良好。