Sustainable Catalytic Synthesis for a Bio‐Based Alternative to the Reach‐Restricted N ‐Methyl‐2‐Pyrrolidone

Autor: Carmen Moreno-Marrodan, Claudio Oldani, Pierluigi Barbaro, Francesca Liguori
Rok vydání: 2020
Předmět:
Zdroj: Advanced sustainable systems 4 (2020). doi:10.1002/adsu.201900117
info:cnr-pdr/source/autori:Pierluigi Barbaro, Francesca Liguori, Claudio Oldani, and Carmen Moreno-Marrodán/titolo:Sustainable Catalytic Synthesis for a Bio-Based Alternative to the Reach-Restricted N-Methyl-2-Pyrrolidone/doi:10.1002%2Fadsu.201900117/rivista:Advanced sustainable systems/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:4
ISSN: 2366-7486
DOI: 10.1002/adsu.201900117
Popis: The catalytic conversion of biomass and its derivatives into valuable chemicals requires efficient, energy saving, and sustainable technologies. In this work, a variety of bifunctional catalysts are prepared combining immobilized metal nanoparticles and acid solid materials featuring Lewis or Brønsted acidity. The catalytic systems are tested in the reductive amination of bio-derived levulinates with primary amines, using hydrogen as clean reducing agent, to obtain N-substituted-5-methyl-2-pyrrolidones, which are proposed as substitutes for the widely used, REACH-restricted solvent N-methyl-2-pyrrolidone. The overall process is studied in depth to identify the best combination of metal and acid functionalities to be used in one-pot and one stage. Pt immobilized onto the Brønsted solid acid Aquivion is shown to be the most efficient catalyst, with a productivity of N-heptyl-5-methyl-2-pyrrolidone of 7.9 mmolgcat-1 h-1 reached at full conversion and 98.6% selectivity, under 120 °C, 4 bar H2 pressure and solvent-free conditions.
Databáze: OpenAIRE
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