Egg Yolk Biomass Derived N‐Doped Ordered Mesoporous Carbon: Highly Robust Heterogeneous Organocatalyst for One‐Pot Deacatalization‐Knoevenagel Reaction,ChemistrySelect

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Egg Yolk Biomass Derived N‐Doped Ordered Mesoporous Carbon: Highly Robust Heterogeneous Organocatalyst for One‐Pot Deacatalization‐Knoevenagel Reaction
ChemistrySelect ( IF 1.9 ) Pub Date : 2020-03-25 , DOI: 10.1002/slct.202000110
Sahar Nadem ₁ , Saleh Vahdati‐Khajeh ₁ , Bagher Eftekhari‐Sis ₁

Affiliation

A novel and facile synthetic route for CMK‐3 type N‐rich ordered mesoporous carbon from cheap egg yolk biomass as a carbon precursor (EYCP) and SBA‐15 as a hard structure directing agent has been developed. To obtain a well‐ordered material, carbonization temperature was investigated. The N₂ adsorption‐desorption analysis proved that the synthetic mesoporous carbon material at 500 °C is highly ordered, with high surface area of 226 m² g⁻¹, and nitrogen content of 6.2% was determined by CHN analysis. Corresponding mesoporous materials were examined as bifunctional acid‐base organocatalysts in a one‐pot tandem deacetalization‐Knoevenagel reaction. Results showed that the modified carbon material which was synthesized at 500 °C exhabited high nitrogen content and reactivity in one‐pot deacetalization‐Knoevenagel reaction. Carboxylic acid and pyridinic nitrogen groups of carbon material play as a bifunctional acid and base catalyst.

中文翻译：

蛋黄生物质衍生的N掺杂有序介孔碳：用于一锅脱催化-Knoevenagel反应的高度坚固的多相有机催化剂

已经开发了一种新颖且简便的合成路线，用于从廉价的蛋黄生物质中将CMK-3型N富集的有序介孔碳作为碳前体（EYCP），并将SBA-15作为硬结构导向剂。为了获得有序的材料，研究了碳化温度。N ₂吸附-解吸分析表明，合成介孔碳材料在500°C时有序排列，表面积较大，为226 m ² g ^-1，通过CHN分析测得氮含量为6.2％。在单锅串联脱缩醛-Knoevenagel反应中，将相应的介孔材料作为双官能酸基有机催化剂进行了研究。结果表明，在500°C下合成的改性碳材料在单锅脱缩醛-Knoevenagel反应中表现出较高的氮含量和反应活性。碳材料的羧酸和吡啶氮基团起着双官能酸和碱催化剂的作用。

更新日期：2020-03-26

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