This, coupled with evidence for the presence of carbonylgroups on the surface of treated resins, point to dioxirane and singlet oxygen (1O2)-mediated oxidations 1O2being produced in the decomposition of KHSO5. Interestingly, the epoxide/benzaldehyde product ratio strictly dependson the conditions adopted for catalyst generation. Such modified resinscatalyze both the selective epoxidation of trans-�-methylstyrene and its double oxidative cleavage tobenzaldeyde in organic–water biphasic media at room temperature, using potassium monoperoxysulfate(KHSO5) as the terminal oxidant. ABSTRACT tDescribed here is the first application of plasma-enhanced chemical vapor deposition (PE-CVD) to thesynthesis of catalytically active materials, prepared by covering Merrifield resin beads with an oxygen-containing fluorocarbon thin film deposited in a hexafluoropropene-O2plasma.
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