Wang, Yazhou published the artcileEffect of Phosphorus Precursor, Reduction Temperature, and Support on the Catalytic Properties of Nickel Phosphide Catalysts in Continuous-Flow Reductive Amination of Ethyl Levulinate, Formula: C7H12O3, the main research area is nickel phosphide ethyl levulinate reductive amination catalyst; N-alkyl-5-methyl-2-pyrrolidone; ethyl levulinate; flow reactor; molecular hydrogen; nickel phosphide; phosphorus precursor; reduction temperature; reductive amination; support effect.
Levulinic acid and its esters (e.g., Et levulinate, EL) are platform chems. derived from biomass feedstocks that can be converted to a variety of valuable compounds Reductive amination of levulinates with primary amines and H2 over heterogeneous catalysts is an attractive method for the synthesis of N-alkyl-5-methyl-2-pyrrolidones, which are an environmentally friendly alternative to the common solvent N-methyl-2-pyrrolidone (NMP). In the present work, the catalytic properties of the different nickel phosphide catalysts supported on SiO2 and Al2O3 were studied in a reductive amination of EL with n-hexylamine to N-hexyl-5-methyl-2-pyrrolidone (HMP) in a flow reactor. The influence of the phosphorus precursor, reduction temperature, reactant ratio, and addition of acidic diluters on the catalyst performance was investigated. The Ni2P/SiO2 catalyst prepared using (NH4)2HPO4 and reduced at 600°C provides the highest HMP yield, which reaches 98%. Although the presence of acid sites and a sufficient hydrogenating ability are important factors determining the pyrrolidone yield, the selectivity also depends on the specific features of EL adsorption on active catalytic sites.
International Journal of Molecular Sciences published new progress about Nanoparticles. 539-88-8 belongs to class esters-buliding-blocks, name is Ethyl 4-oxopentanoate, and the molecular formula is C7H12O3, Formula: C7H12O3.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics