Flow synthesis of N-alkyl-5-methyl-2-pyrrolidones over Ni2P/SiO2 catalyst

Yazhou Wang, Alexey L. Nuzhdin, Ivan V. Shamanaev, Galina A. Bukhtiyarova

Research output: Contribution to journalArticlepeer-review

Abstract

N-alkyl-5-methyl-2-pyrrolidones are an attractive alternative to the common solvent N-methyl-2-pyrrolidone (NMP) and can be used as starting materials for synthesis of various valuable chemicals. Reductive amination of alkyl levulinates derived from biomass feedstock is a promising method for production of these compounds. In the present work, N-alkyl-5-methyl-2-pyrrolidones were obtained in excellent yields by reductive amination of ethyl levulinate with alkylamines over SiO2-supported nickel phosphide in a flow reactor using molecular hydrogen as a reducing agent. At the same time, aromatic amines and 1-nitropropane give a lower yield of the corresponding pyrrolidones. The influence of the solvent nature, temperature, pressure, hydrogen and liquid flow rates on the catalyst performance was studied.

Original languageEnglish
Article number111884
JournalMolecular Catalysis
Volume515
DOIs
Publication statusPublished - Oct 2021

Keywords

  • Ethyl levulinate
  • Flow reactor
  • N-alkyl-5-methyl-2-pyrrolidones
  • Reductive amination
  • SiO-supported nickel phosphide catalyst

OECD FOS+WOS

  • 2.04 CHEMICAL ENGINEERING
  • 1.04 CHEMICAL SCIENCES

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