Au → M bonds promote catalytic alkyne hydrofunctionalisation.
M Alexander EltesterHans GildenastKristína RabatinováChristopher PützChristopher CremerPatrick LanzerathJulian P SchroersMichael E TauchertPublished in: Chemical communications (Cambridge, England) (2023)
The impact of metalloligands on Au catalysed alkyne hydrofunctionalisation is studied. Ambiphilic PMP-type ligands (M = Cu I , Ag I , Zn II ) stabilise Au → M bonds including unprecedented Au I → Zn II interactions. The Lewis acidity of Au increases in the order Cu I < Ag I < Zn II promoting catalytic cycloisomerisation of propargylamide 14. Au/Zn complex 8 is an excellent catalyst for alkyne hydroamination.