Inhaltspezifische Aktionen

Unravelling Lawesson’s Reagent – The Structure of Monomeric (4-Methoxyphenyl)phosphine Disulfide

Artur Mardyukov, Dominik Niedek and Peter R. Schreiner

Chem. Commun. 2018, 54, 2715–2718. DOI: 10.1039/c8cc00034d
Highlights: a) Front cover of corresponding issue; b) “HotChem” article featured by the Royal Society of Chemistry.

Graphical abstract: Unravelling Lawesson's reagent: the structure of monomeric (4-methoxyphenyl)phosphine disulfide

We describe the isolation as well as IR and UV/Vis spectroscopic characterization of (4-methoxyphenyl)phosphine disulfide in argon matrices at 10 K. The title compound proved to be highly photolabile; irradiation with UV light (λ = 334 nm) led to rearrangement to the equally unreported 3-(4-methoxyphenyl)-1,2,3-dithiaphosphirane. Photoreversion can be achieved upon irradiation at λ = 465 nm.