کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
67529 48485 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Organocatalyzed oxidation of alcohols to aldehydes with molecular oxygen
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Organocatalyzed oxidation of alcohols to aldehydes with molecular oxygen
چکیده انگلیسی

The first direct organocatalytic system for oxidizing alcohols to aldehydes with molecular oxygen is described. The catalytic activity of 9,10-diaminophenanthrene with and without the presence of transition metals was studied in the oxidation of benzylic alcohols to corresponding aldehydes. The catalytic reaction occurs at elevated dioxygen pressure and temperature in alkaline aqueous solutions. Up to 80% conversions were observed in organocatalytic oxidation of 3,4-dimethoxybenzyl alcohol to corresponding aldehydes. Addition of transition metal ions to reaction solution increased the catalytic activity significantly. Complete conversions of 3,4-dimethoxybenzyl alcohol to aldehydes were observed in the presence of copper and iron ions.

The first direct oxidation of benzylic alcohols to aldehydes with a 9,10-diaminophenanthrene organocatalyst using molecular oxygen as terminal oxidant is described. Transition metal ions increase the catalytic activity of the reaction significantly. Up to 80% conversion from alcohol to aldehyde were observed in organocatalytic reaction and complete conversions in the presence of iron and copper ions. Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 275, Issues 1–2, 17 September 2007, Pages 228–232
نویسندگان
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