Gold is dissolved rapidly in alcohols via halogenation using inexpensive acetyl halides and the green oxidant hydrogen peroxide, potentially replacing more traditional and hazardous leaching procedures for the growing e-waste recycling industry. ...
Artikel
Homogeneous Catalyzed Direct Conversion of Furfural to Gamma‐Valerolactone
ChemSusChem, März 2024, DOI. Login für Volltextzugriff.
Von Wiley-VCH zur Verfügung gestellt
We illustrate a sustainable and mild reaction process that efficiently transforms biomass-derived furfural directly into GVL. Combining the homogeneous catalyst Ru-MACHO-BH with H3PO4(aq) allows to transform furfural to GVL in 84 % yield at 100 °C. This demonstrates the feasibility of transforming a major polysaccharide component in lignocellulose (hemicellulose) to GVL in a one-pot direct approach without intermediate purification and isolation.
Abstract
Herein, we report the direct conversion of biomass-derived furfural to γ-valerolactone (GVL) in a one-pot system, using the combination of Ru-MACHO-BH and a Brønsted acid (H3PO4). A GVL yield of 84 % is achieved under mild reaction conditions using 1 mol% of Ru-MACHO-BH and 3.8 M H3PO4(aq) at 100 °C for 7 hours.
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