|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|49261||46730||2016||5 صفحه PDF||ندارد||دانلود رایگان|
• Molecular oxygen is activated by indium dispersed on TUD-1 surfaces.
• Basic sites of catalysts are increasing with increasing indium loading.
• It is highly active towards BVO of cyclohexanone using molecular oxygen and benzaldehyde.
• Polar aprotic solvents benzonitrile, DCE and acetonitrile are highly efficient in achieving optimum performance.
InOx/TUD-1 is prepared by sol–gel method and characterized by different techniques. On the basis of different characterization results it is found that spongy porous InOx/TUD-1 (In/Si = 8/100) matrix contains small crystallite of indium oxide in + 3 oxidation state. InOx/TUD-1 (In/Si = 8/100) catalyst shows good catalytic results for Baeyer–Villiger oxidation of cyclic ketones using molecular oxygen and sacrificial reagent benzaldehyde. The cyclohexanone conversion was found 100% with ε-caprolactone selectivity 100% using polar aprotic solvents e.g. dichloroethane, acetonitrile and benzonitrile in the presence of molecular oxygen.
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Journal: Catalysis Communications - Volume 74, 10 January 2016, Pages 80–84