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An easily recoverable and efficient natural biopolymer-supported zinc chloride catalyst system for the chemical fixation of carbon dioxide to cyclic carbonate
Chemical fixation of carbon dioxide with epoxides to form cyclic carbonates proceeds very effectively under mild conditions by using a chitosan-supported zinc chloride catalyst in conjunction with… Expand
Nitrogen-Functionalized Ordered Mesoporous Carbons as Multifunctional Supports of Ultrasmall Pd Nanoparticles for Hydrogenation of Phenol
N-functionalized ordered mesoporous carbons could be readily obtained by post-synthesis treatment with nitrogen containing molecules to achieve materials with a nitrogen loading as high as 8.6 wt %… Expand
Large-scale separation of alkaloids from Corydalis decumbens by pH-zone-refining counter-current chromatography.
- X. Wang, Yanling Geng, Fuwei Li, X. Shi, J. Liu
- Medicine, Chemistry
- Journal of chromatography. A
- 19 May 2006
pH-zone-refining counter-current chromatography was successfully applied to the separation of alkaloids from a crude extract of Corydalis decumbens (Thunb.) Pers. using a multilayer coil planet… Expand
Direct N-acylation of azoles via a metal-free catalyzed oxidative cross-coupling strategy.
The KI-catalyzed N-acylation of azoles via direct oxidative coupling of C-H and N-H bonds has been developed. It could be smoothly scaled up to gram synthesis of acyl azoles. The reaction occurred by… Expand
Chemical fixation of CO2 with highly efficient ZnCl2/[BMIm]Br catalyst system
The search for environmentally benign and economic process has been the impetus for much of the research involving epoxide and carbon dioxide coupling in view of the so called "green chemistry" and"… Expand
A novel and effective Ni complex catalyst system for the coupling reactions of carbon dioxide and epoxides.
- Fuwei Li, C. Xia, Liwen Xu, W. Sun, Gexin Chen
- Chemistry, Medicine
- Chemical communications
- 23 July 2003
The coupling of carbon dioxide and mono-substituted terminal epoxides or cyclohexene oxide to form cyclic carbonates under a Ni complex catalyst system without using additional organic solvents was… Expand
Facile Fabrication of Composition-Tuned Ru–Ni Bimetallics in Ordered Mesoporous Carbon for Levulinic Acid Hydrogenation
Bimetallic catalysts are of great importance due to their unique catalytic properties. However, their conventional synthesis requires tedious multistep procedures and prolonged synthetic time, and… Expand
Preparative isolation and purification of capsaicinoids from Capsicum frutescens using high-speed counter-current chromatography
Abstract Preparative high-speed counter-current chromatography (HSCCC) was successfully used for isolation and purification of capsaicinoids from an extract of Capsicum frutescens with a two-phase… Expand
Acidity-regulation for enhancing the stability of Ni/HZSM-5 catalyst for valeric biofuel production
Abstract Valerate esters as a new class of cellulosic transportation fuels showed great industrial prospect. Here we developed a non-noble Ni/HZSM-5 bifunctional catalyst with excellent stability for… Expand