Two NC(sp³)O pincer palladium(II) complexes 3a-3b were readily prepared in high yields in only two steps. Of the first step, catalytic hydrophosphination of 2-alkenoylpyridines and subsequent in situ phosphine oxidation produced the NC(sp³)O pincer preligands 2a-2b. The second step is palladation of the preligands 2a-2b where PdCl₂ was used as the Pd source to afford the desired Pd pincers 3a-3b via C(sp³)-H bond activation. Single crystal X-ray diffraction analysis of complex 3a unambiguously confirmed the NCO tridentate coordination mode of the complexes. The two complexes 3a-3b were applied to catalyze the Suzuki-Miyaura reaction. Complex 3b was found to be more efficient and exhibited very high activity in the Suzuki reaction of structurally diverse aryl bromides with arylboronic acids in aqueous ethanol under air. At a reaction temperature of 70 °C, a TON of up to 1.9 × 10⁵ and a TOF of up to 9800 h⁻¹ were achieved. At lower temperatures 3b was still very active, giving a TON of up to 9.5 × 10³ and a TOF of up to 3900 h⁻¹ at room temperature.

只需两步即可轻松以高收率制备两种NC（sp ³）O夹心钯（II）配合物3a-3b。第一步，2-链烯酰基吡啶的催化氢磷酸化和随后的原位膦氧化产生NC（sp ³）O夹钳预配体2a-2b。第二步是对配体2a-2b进行触板反应，其中PdCl ₂被用作Pd源，以通过C（sp ³）-H键活化提供所需的Pd钳3a - 3b。配合物3a的单晶X射线衍射分析明确证实了配合物的NCO三齿配位模式。两个复合体将3a-3b用于催化Suzuki-Miyaura反应。发现复合物3b在空气中在乙醇水溶液中在结构上不同的芳基溴化物与芳基硼酸的Suzuki反应中更有效并且表现出很高的活性。在70°C的反应温度下，TON可达1.9×10 ⁵，TOF可达9800 h ^-1。在较低温度下3b仍然非常活跃，在室温下TON高达9.5×10 ³，TOF高达3900 h ^-1。