کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
62131 | 47622 | 2009 | 6 صفحه PDF | دانلود رایگان |
[n-Bu4N]VO3 or a combination of vanadium complexes with some additives, as chloride salts or amines, are attractive and effective co-catalysts for aerobic oxidation of alcohols with dioxygen catalyzed by N-hydroxyphthalimide (NHPI). The role of the additives relates to the formation of more labile six co-ordinate vanadium complexes. A mechanism for the aerobic oxidation of alcohols with dioxygen is proposed and its essential steps are the formation of oxotrialkoxyvanadium(V) complexes and generation of a phthalimide-N-oxyl (PINO
• ) radical as result of reaction of NHPI with oxovanadium(V) compounds. The oxidation of alcohols concerns to both radical and molecular pathways.
A mechanism for the aerobic oxidation of alcohols with dioxygen catalyzed by NHPI and vanadium complexes is proposed. Its essential step is generation of a phthalimide-N-oxyl (PINO
• ) radicals as result of reaction of NHPI with oxovanadium(V) compounds. The oxidation of alcohols concerns both radical and molecular pathways.Figure optionsDownload high-quality image (21 K)Download as PowerPoint slide
Journal: Journal of Catalysis - Volume 263, Issue 1, 1 April 2009, Pages 167–172