“Snapshot” Trapping of Multiple Transient Azolyllithiums in Batch

Invited for the cover of this issue is Kentaro Okano and co‐workers at Kobe University. The image depicts that the ‘dancing’ transient organolithiums in the ′halogen dance’ are successfully trapped in a batch reactor as if their individual snapshots were taken. Read the full text of the article at 10.1002/chem.202101256. “The selective trapping of multiple transient azolyllithiums in a ‘halogen dance’ was realized in a batch reactor, by choosing an appropriate zinc halide diamine complex as the transmetalating agent. The concept that the selectivity is switched by the diamine ligand is unprecedented, in contrast to flow chemistry which controls the reaction time precisely. The reaction is operationally simple and can be performed at 0 °C with high reproducibility on a multi‐gram scale.” Read more about the story behind the cover in the Cover Profile and about the research itself on page 10267 ff. (DOI: 10.1002/chem.202101256).