Picolinamide modified β-cyclodextrin/Pd (II) complex: Asupramolecular catalyst for Suzuki-Miyaura coupling of aryl, benzyl and allyl halides with arylboronic acids in water
作者:Kaixiu Luo、Lu Zhang、Rui Yang、Yi Jin、Jun Lin
DOI:10.1016/j.carbpol.2018.07.089
日期:2018.11
supramolecular catalysts for Suzuki-Miyaura coupling were prepared and characterized by NMR, FT-IR, TEM, XRD, TGA, and XPS. The resulting picolinamide-modified β-cyclodextrin/Pd(II) complex (Pd(II)@PCA-β-CD) showed very efficient catalytic activity for Suzuki-Miyaura coupling of aryl, benzyl, and allyl halides with arylboronic acids in an environmentally benign aqueous solution. Various organic halides
制备了用于铃木-宫浦偶联的新型超分子催化剂,并通过NMR,FT-IR,TEM,XRD,TGA和XPS对其进行了表征。所得的吡啶甲酰胺改性的β-环糊精/ Pd(II)配合物(Pd(II)@PCA-β-CD)在环境中对芳基,苄基和烯丙基卤化物与芳基硼酸的Suzuki-Miyaura偶联反应显示出非常有效的催化活性。良性水溶液。各种有机卤化物(包括氯化物)可以用苯基硼酸和催化量的Pd(II)@PCA-β-CD产生良好或优异的收率。这种水溶性催化剂能够重复使用至少八次,而催化活性只会略有下降。还从头算QM / MM方法探索和计算了Pd(II)/ Pd(IV)催化循环的推定机理。