Novel Palladium-on-Carbon/Diphenyl Sulfide Complex for Chemoselective Hydrogenation: Preparation, Characterization, and Application
作者:Akinori Mori、Tomoteru Mizusaki、Masami Kawase、Tomohiro Maegawa、Yasunari Monguchi、Shinobu Takao、Yukio Takagi、Hironao Sajiki
DOI:10.1002/adsc.200700571
日期:2008.2.22
Pd/C[Ph2S], was developed to achieve the highly chemoselective hydrogenation of alkenes, acetylenes, azides, and nitro groups in the presence of aromatic ketones, halides, benzyl esters, and N-Cbz protective groups. Instrumental analyses of the heterogeneous catalyst demonstrated that diphenyl sulfide was embedded on Pd/C via coordination of its sulfur atom to palladium metal or physical interaction with graphite
开发了一种固定在钯碳体系上的二苯硫醚Pd / C [Ph 2 S],以在芳族酮,卤化物,苄基酯存在下实现烯烃,乙炔,叠氮化物和硝基的高化学选择性氢化。和N-Cbz保护基。对非均相催化剂的仪器分析表明,二苯硫醚通过其硫原子与钯金属的配位或与活性炭石墨层的物理相互作用而嵌入Pd / C中。催化剂可被回收并重复使用至少五次,而反应活性没有任何显着损失。