Sustainable Co‐Synthesis of Glycolic Acid, Formamides and Formates from 1, 3‐Dihydroxyacetone by a Cu/Al2O3 Catalyst with a Single Active Sites. Issue 16 (27th February 2019)

• Record Type: Journal Article
• Authors: Dai, Xingchao; Adomeit, Sven; Rabeah, Jabor; Kreyenschulte, Carsten; Brückner, Angelika; Wang, Hongli; Shi, Feng
• Is Part Of: Angewandte Chemie international edition. Volume 58:Issue 16(2019)
• Page Start: 5251
• Page End: 5255
• Publication Date: 2019-02-27
• Subjects: biomass conversion -- 1, 3-dihydroxyacetone -- EPR spectroscopy -- formamides and formates -- glycolic acid; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201814050
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: Glycolic acid (GA), as important building block of biodegradable polymers, has been synthesized for the first time in excellent yields at room temperature by selective oxidation of 1, 3‐dihyroxyacetone (DHA) using a cheap supported Cu/Al2 O3 catalyst with single active Cu II species. By combining EPR spin‐trapping and operando ATR‐IR experiments, different mechanisms for the co‐synthesis of GA, formates, and formamides have been derived, in which . OH radicals formed from H2 O2 by a Fenton‐like reaction play a key role. Abstract : Clean and green by radicals : 1, 3‐Dihydroxylacetone, a biomass‐based platform molecule has been oxidized with 100 % carbon atom efficiency at room temperature to valuable glycolic acid, formamides and formates by a cheap non‐noble metal catalyst. Radical‐based mechanisms were discovered by in situ EPR with spin traps and operando ATR‐IR spectroscopy.