|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|49698||46760||2016||4 صفحه PDF||سفارش دهید||دانلود رایگان|
• Pd/C with low loading efficiently catalyzes olefins epoxidation at ambient conditions.
• Pd/C exhibits excellent stability and recyclability.
• The epoxidation reaction on Pd/C is via radical intermediate.
Epoxides are a kind of useful synthetic intermediates. This work reports that activated carbon-supported Pd nanoparticles (Pd/C) efficiently catalyzed cyclohexene epoxidation in the presence of molecular oxygen and isobutyraldehyde with 91.5% conversion, 95.6% selectivity to cyclohexene oxide, ~ 400 h− 1 activity and excellent stability for at least 5 catalytic runs. The epoxidation was examined on Pd catalysts supported on seven supports, and Pd/C exhibited superior catalytic performance possibly due to the inert support surface. The epoxidation reaction on Pd/C is via radical intermediate. Pd/C is also applicable to catalyze other olefins epoxidation.
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Journal: Catalysis Communications - Volume 83, 5 August 2016, Pages 78–81