Natural clay, attapulgite was successfully employed to prepare reusable heterogeneous catalyst of ATP–APTES–Pd through simple and green steps. The catalyst was characterized by ICP, IR, XRD, XPS, SEM, and TG. The novel complex exhibited excellent activity for a wide scope of Suzuki and Heck cross-coupling reactions without phosphine ligand, respectively. Remarkably, the catalyst is easy to separate, stable and can be reused several times in good activity without any additional activation treatment.

中文翻译：

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凹凸棒锚定的Pd复合催化剂：用于C–C偶联反应的高活性和可重复使用的催化剂

天然粘土，凹凸棒石通过简单而绿色的步骤成功地用于制备可重复使用的ATP-APTES-Pd均相催化剂。通过ICP，IR，XRD，XPS，SEM和TG对催化剂进行了表征。该新型复合物分别在没有膦配体的情况下对广泛的铃木和Heck交叉偶联反应均显示出优异的活性。值得注意的是，该催化剂易于分离，稳定并且可以以良好的活性多次使用，而无需任何额外的活化处理。