The palladium catalysts prepared using carbon nanoglobules (CNGs) as the support and containing no more than 2 wt% Pd were shown to be highly effective for the liquid-phase hydrogenation of ethyl 4-nitrobenzoate under mild conditions. Regardless of the kind of CNGs and the catalyst preparation method, the most of the Pd/CNGs catalysts allow achieving a complete conversion of substrate giving benzocaine in a 100% yield. The Pd/CNGs catalyst is easily recycled many times without loss of its catalytic performance. The results obtained may be useful for the development of effective Pd/C catalysts for chemoselective hydrogenation of various nitroarenes.

已显示使用碳纳米球（CNG）作为载体制备的钯催化剂，其钯含量不超过2 wt％，对于在温和条件下进行4-硝基苯甲酸乙酯的液相加氢非常有效。无论CNG的种类和催化剂的制备方法如何，大多数Pd / CNGs催化剂都可以实现底物的完全转化，从而以100％的收率得到苯并卡因。Pd / CNGs催化剂易于多次循环使用，而不会损失其催化性能。获得的结果可能对开发用于各种硝基芳烃化学选择加氢的有效Pd / C催化剂有用。