|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|49219||46724||2016||4 صفحه PDF||ندارد||دانلود رایگان|
• Ru catalyses reduction of levulinic acid with secondary alcohols to γ-valerolactone.
• Reaction rate increases under microwave irradiation compared to conventional heating.
• i-Propanol and 2-butanol are the best reductants for levulinic acid and its esters.
• The dehydrogenation–hydrogenation mechanism with Ru0 active species was proposed.
• Ru/C exhibited stability upon recycling.
γ-Valerolactone can be synthesized by reduction of levulinic acid and its esters in the presence of secondary alcohols as hydrogen donors and Ru/C as catalyst. The reaction rate increases when using microwave heating. Quantitative formation of γ-valerolactone was observed within 25 min at 160 °C under microwave heating based on levulinic acid and i-propanol. The reaction appears to proceed via a dehydrogenation–hydrogenation sequence.
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Journal: Catalysis Communications - Volume 75, 5 February 2016, Pages 65–68