2835-98-5Relevant articles and documents
High-Density and Thermally Stable Palladium Single-Atom Catalysts for Chemoselective Hydrogenations
Baaziz, Walid,Chu, Wei,Ersen, Ovidiu,Greiner, Mark,Liu, Wei,Liu, Yuefeng,Ma, Ying,Pham-Huu, Cuong,Ren, Yujing,Wang, Aiqin,Zhang, Tao,Zhou, Yanan
supporting information, p. 21613 - 21619 (2020/09/21)
Single-atom catalysts (SACs) have shown superior activity and/or selectivity for many energy- and environment-related reactions, but their stability at high site density and under reducing atmosphere remains unresolved. Herein, we elucidate the intrinsic driving force of a Pd single atom with high site density (up to 5 wt %) under reducing atmosphere, and its unique catalytic performance for hydrogenation reactions. In situ experiments and calculations reveal that Pd atoms tend to migrate into the surface vacancy-enriched MoC surface during the carburization process by transferring oxide crystals to carbide crystals, leading to the surface enrichment of atomic Pd instead of formation of particles. The Pd1/α-MoC catalyst exhibits high activity and excellent selectivity for liquid-phase hydrogenation of substituted nitroaromatics (>99 %) and gas-phase hydrogenation of CO2 to CO (>98 %). The Pd1/α-MoC catalyst could endure up to 400 °C without any observable aggregation of single atoms.
Ramoplanin derivatives possessing antibacterial activity
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Page/Page column 69, (2010/11/23)
Novel ramoplanin derivatives are disclosed. These ramoplanin derivatives exhibit antibacterial activity. As the compounds of the subject invention exhibit potent activities against gram positive bacteria, they are useful antimicrobial agents. Methods of synthesis and of use of the compounds are also disclosed.
Indium Mediated Reduction of Nitro and Azide Groups in the Presence of HCl in Aqueous Media
Lee, Jung Gyu,Choi, Kyung Il,Koh, Hun Yeong,Kim, Youseung,Kang, Yonghan,Cho, Yong Seo
, p. 81 - 84 (2007/10/03)
Indium mediated reduction of azide and nitro groups in the presence of HCl (1.5 equiv based on indium) at room temperature in aqueous THF successfully provided the corresponding amine in high to quantitative yields. Under the some reaction conditions, selective reduction of azide and nitro group in the presence of vinyl group could be accomplished.