您好，欢迎访问贵州省农业科学院 机构知识库！
贵州省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Cascade upgrading of bio-based 4'-methoxypropiophenone to anethole enabled by hot-compressed alcohol over a Hf-phytic acid coordination catalyst

文献类型： 外文期刊

作者： Tan, Jinyu 1 ; Wu, Hongguo 1 ; Huang, Jinshu 1 ; Jian, Yumei 1 ; Zhang, Heng 1 ; Li, Hu 1 ; Yang, Song 1 ;

作者机构： 1.Guizhou Univ, Ctr R&D Fine Chem, State Key Lab Breeding Base Green Pesticide & Agr, Key Lab Green Pesticide & Agr Bioengn, Guiyang, Peoples R China

2.Guizhou Acad Agr Sci, Inst Crop Germplasm Resources, Guiyang, Peoples R China

关键词： Hot-compressed alcohol; 4'-methoxypropiophenone; Anethole; Cascade reaction; Heterogeneous catalysts

期刊名称：JOURNAL OF SUPERCRITICAL FLUIDS （ 影响因子：4.514； 五年影响因子：4.303 ）

ISSN： 0896-8446

年卷期： 2022 年 189 卷

页码：

收录情况： SCI

摘要： Hot compressed solvents (alcohol, water) have been widely used in the production of value-added chemicals from biomass due to their sufficiently low viscosity, high diffusivity, and environmentally-benign features. Anethole (AN) is a unique kind of natural aromatic compound, while its green synthesis method still requires to be explored. Herein, a novel porous acid-base bifunctional phytic acid (PA)-hafnium (Hf)(1:2.5) catalyst was prepared by a simple assembly of PA with Hf under a one-pot hydrothermal method (120 C, 24 h). The PA-Hf(1: 2.5) possessed outstanding catalytic activity for the synthesis of AN from 4'-methoxypropiophenone (4-MOPP) at 220 C and 15 bar in 2-pentanol (4-MOPP conversion: 99.8%, AN yield: 98.8%), which can be ascribed to its moderate surface area (95.3 m2/g), pore volume (0.18 cm3/g), mesopores (4.0 nm), and acid-base couple sites (density: 3.6 vs 1.7 mmol/g). 2-Pentanol was determined to serve as the superior hydrogen donor and solvent for the overall conversion process, which can remarkably hinder side reactions in this hot-compressed medium. Moreover, the cooperative interaction of Lewis acid-base couple sites (Hf4+-O2-) and Bronsted acidic species (-OH) of PA-Hf(1:2.5) led to its excellent catalytic performance. PA-Hf(1:2.5) was highly reusable with constant activity after five reaction cycles.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：贵州省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台