Stöhr, FabianFabianStöhrSpecht, PascalPascalSpechtBecker, JonathanJonathanBeckerGöttlich, RichardRichardGöttlichSchindler, SiegfriedSiegfriedSchindler2023-11-152023-11-152022https://jlupub.ub.uni-giessen.de/handle/jlupub/18634http://dx.doi.org/10.22029/jlupub-17998The reaction of dioxygen with copper(I) complexes containing camphor-derived ligands was investigated. Stopped-flow measurements revealed the formation of bis(μ-oxido) copper complexes at low temperatures. However, these intermediates were not stable enough to be isolated and decomposed quickly. Sterically more demanding alkyl groups slowed the formation of the bis(μ-oxido) copper complexes. A kinetic analysis was performed and showed - in line with previous reports - that the rate-determining step could be assigned to forming a mononuclear superoxido copper complex. For one of the reactions investigated, a product could be structurally characterized and turned out to be a copper(II) complex with an additional hydroxide as a ligand (most likely caused by a C−H abstraction from the solvent acetone). One of the complexes oxidized thioanisole to the corresponding sulfoxide (conversion of 34 % according to GC-MS) with no byproducts. Chiral GC gave an enantiomeric excess of 14 %.enNamensnennung - Nicht kommerziell 4.0 Internationalddc:540