Cover Feature: Pyridyl‐Functionalized 1‐Phosphabarrelene: Synthesis, Coordination Chemistry and Photochemical di‐π‐Methane Rearrangement (Chem. Eur. J. 63/2019)

Abstract

Di‐π‐methane rearrangement in a phosphorus compound The present manuscript reports on the synthesis of the first pyridyl‐functionalized 1‐phosphabarrelene from the corresponding heteroaromatic phosphinine and hexafluoro‐2‐butyne. This P,N‐hybrid ligand readily forms coordination compounds with RhI, W0, and Fe0 and undergoes a rather selective photochemical di‐π‐methane rearrangement in the coordination sphere of the metal center to afford a novel 5‐phosphasemibullvalene derivative. DFT calculations provide first insights into the mechanism of this reaction. More information can be found in the Full Paper by C. Müller et al. on page 14332.