Phillips Jessica M, Ahamed Muneer, Duan XiaoFei, Lamb Robert N, Qu Xianlin, Zheng Kun, Zou Jin, Chalker Justin M, Raston Colin L
Flinders Institute for NanoScale Science and Technology, College of Science and Engineering, Flinders University, Bedford Park, South Australia 5042, Australia.
School of Chemistry, University of Melbourne, Parkville, Victoria 3012, Australia.
ACS Appl Bio Mater. 2019 Jan 22;2(1):488-494. doi: 10.1021/acsabm.8b00678. Epub 2019 Jan 9.
Cellulose immobilized palladium (0) nanoparticles (PdNPs) were prepared for the use in scalable catalytic reactions in flow. Preparation of the catalyst is remarkably simple and fast, where a palladium acetate solution is drop-casted onto cellulose paper and then exposed to 1 atm of hydrogen for a mere 90 s to produce embedded Pd(0) nanoparticles. This catalyst system is efficient in the hydrogenation of alkenes, nitroarenes, ketones, and enamides, with products formed in high yields, under ambient pressure and temperature. The system is also effective for transfer hydrogenation using ammonium formate as an alternative hydrogen source. A high catalyst stability and reusability are demonstrated along with the chemoselective and scalable synthesis of industrially important fine chemicals, including the biobased molecule cyrene.
制备了纤维素固定化钯（0）纳米颗粒（PdNPs）用于流动体系中的可扩展催化反应。该催化剂的制备非常简单快捷，即将醋酸钯溶液滴铸到纤维素纸上，然后在1个大气压的氢气中仅暴露90秒，即可生成嵌入的Pd(0)纳米颗粒。该催化剂体系在烯烃、硝基芳烃、酮和烯酰胺的氢化反应中效率很高，在常压和常温下能高产率地生成产物。该体系使用甲酸铵作为替代氢源进行转移氢化反应也很有效。该体系具有高催化剂稳定性和可重复使用性，同时能够化学选择性地、可扩展地合成包括生物基分子环戊烯酮在内的重要工业精细化学品。
