Synthesis and Immobilization of Metal Nanoparticles Using Photoactive Polymer‐Decorated Zeolite L Crystals and Their Application in Catalysis
作者:Maren Wissing、Maximilian Niehues、Bart Jan Ravoo、Armido Studer
DOI:10.1002/adsc.202000208
日期:2020.5.26
zeolite L crystals decorated with photoactive polymer brushes is described. The polymers used in this approach serve a dualrole: Upon irradiation with UV light, they release highly reducing ketyl radicals in a Norrish‐Type‐I reaction. These radicals serve as one electron donors to reduce metal salts to the corresponding metal NPs. At the same time the polymer shell stabilizes the in situ generated metal
Irradiation of 9-methylene-9,10-dihydrophenanthrene (1) in the presence of 1,1-diphenylethene or styrene in benzene afforded ene-reaction adduct in good yield. In the absence of arylalkenes, the dimerized product of 1, 9-[2-(9-phenanthryl)ethyl]-9,10-dihydrophenanthrene, and 9-methylphenanthrene were obtained as major products.