Experimental evidence for the elusive ketohydroperoxide pathway and the formation of glyoxal in ethylene ozonolysis.
Caroline Smith LewinOlivier HerbinetGustavo A GarcíaPhilippe ArnouxLuc-Sy TranGuillaume VanhoveLaurent NahonFrédérique Battin-LeclercJérémy BourgalaisPublished in: Chemical communications (Cambridge, England) (2022)
Despite decades of research on alkene ozonolysis, the kinetic network of the archetypal case of ethylene (CH 2 CH 2 ) with ozone (O 3 ) still lacks consensus. In this work, experimental evidence of an elusive diradical pathway is provided through the detection of the 2-hydroperoxyacetaldehyde ketohydroperoxide and its decomposition product, glyoxal.