Erratum: Palladium-catalysed 5-: Endo-trig allylic (hetero)arylation (Chem. Sci. (2020) 11 (4948-4953) DOI: 10.1039/D0SC01932A)

Abstract

Aer the publication of our manuscript, a reader suggested that the transformation (shown in Scheme 1) can also be described as a Nazarov-type cyclisation1 with palladium chloride acting as a Lewis acid. While we do not have any evidence at this stage tosupport the Lewis acidic behaviour of palladium chloride,2 however, a Nazarov-type mechanistic scenario is possible. The overall transformation can also be considered as an intramolecular ene-type reaction3 or as an intramolecular Friedel–Cras-type reaction, 4 although our data agrees better with the 5-endo-trig process facilitated by the LUMO umpolung.5 Further experimental and computational investigations are underway to elucidate the full mechanistic details