| 标题 |
Synthesis of Starch Derived Sulfonated Carbon-based Solid Acid as a Novel and Efficient Nanocatalyst for the Synthesis of Dihydropyrimidinone
淀粉基磺化碳基固体酸的合成作为合成二氢嘧啶酮的新型高效纳米催化剂
相关领域
淀粉
碳纤维
化学
计算机科学
有机化学
算法
复合数
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| 其它 | Novel Carbon-based solid-acid nanocatalyst (SCP-SO3H) has been synthesized via one-step hydrothermal carbonization and sulfonation of starch, citric acid, and p-toluenesulfonic acid at 180 degrees C in a scaled autoclave. The novel nanocatalyst had an acidity of 6.4 mmol/g which was characterized by IR, EDX, TEM, FESEM, and XRD analyses. The catalytic activity of the carbonaceous material as an efficient and reusable catalyst was investigated by the condensation reaction of ethyl acetoacetate, aldehyde and urea for the synthesis of Dihydropyrimidinones. The condensation reaction was carried out under solvent-free conditions at 100 degrees C to produced Dihydropyrimidinones in good to high yields. The mild conditions, eco-friendly, excellent yields, short reaction times and using an inexpensive and reusable catalyst are important features of this method. |
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