Sulfur modification of Au via treatment with Piranha solution provides low-Pd releasing and recyclable Pd material, SAPd.
Sulfur modification of Au via treatment with Piranha solution provides low-Pd releasing and recyclable Pd material, SAPd.
复制标题
DOI：
10.1021/ja9100084
复制
发表时间：
2010-05
影响因子：
15
通讯作者：
N. Hoshiya;M. Shimoda;Hiroumi Yoshikawa;Y. Yamashita;S. Shuto;M. Arisawa
中科院分区：
文献类型：
--
作者：
N. Hoshiya;M. Shimoda;Hiroumi Yoshikawa;Y. Yamashita;S. Shuto;M. Arisawa
我们在对食人鱼处理过的Au(111)/云母的SR-HXPS测量中发现，在这种处理过程中，金的表面经历了硫的修饰，这被认为只去除了金表面的杂质。我们还成功地开发了一种实用的Pd材料SAPD，将其固定在硫磺修饰的Au上。这是迄今为止发展起来的最好的Pd材料之一，具有最低的Pd释放水平和高的可回收性。由于SAPD可将极低水平的钯浸出到反应混合物中，因此无需使用SAPD去除残留的钯，即使在涉及药物成分的合成中也是如此。
We have found in the SR-HXPS measurement of Piranha-treated Au(111)/mica that the gold surface underwent sulfur modification during this treatment, which was believed to have only removed impurities from the gold surface. We also successfully developed a practical Pd material, SAPd, whose Pd was immobilized on sulfur-modified Au. With the lowest Pd-releasing levels and high recyclability, this is one of the best Pd materials thus far developed. Because it leaches extremely low levels of Pd into reaction mixtures, removal of the residual Pd is unnecessary using SAPd, even in syntheses involving pharmaceutical ingredients.