A palladium organic–inorganic hybrid magnetic nanocatalyst for the Heck-cross coupling reactions was developed. This newly synthesized phosphine-free PdMNPs catalyzed Heck-cross coupling reactions in short reaction times (20–30 min) and high to excellent yields (75–93%). The catalyst was separated simply by an external magnet and reused in 10 successive runs without significant decrease in catalytic activity. The structure of the catalyst was established by Fourier transform infrared, X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, vibrating sample magnetometer and thermogravimetric analysis analyses.

开发了用于Heck交叉偶联反应的钯有机-无机杂化磁性纳米催化剂。这种新合成的不含膦的PdMNPs在较短的反应时间（20-30分钟）和高至优异的收率（75-93％）中催化了Heck交叉偶联反应。催化剂仅需通过外部磁体即可分离，并可以连续10次重复使用，而催化活性不会明显降低。通过傅里叶变换红外光谱，X射线衍射，扫描电子显微镜，透射电子显微镜，能量色散X射线光谱，振动样品磁强计和热重分析来建立催化剂的结构。