Screening of <i>N</i>
,<i>N</i>
-bidentate and <i>N</i>
,<i>N</i>
,<i>N</i>
-tridentate pyridine-based ligands in the catalytic allylic oxidation of cyclic olefins
A variety of chiral N,N‐bidentate and N,N,N‐tridentate ligands based on the pyridine framework, namely C2‐symmetric dipyridylmethane and terpyridine, N‐(p‐toluensulfinyl)iminopyridines and two kinds of iminopyridines, has been assessed in the asymmetric copper(I)‐catalysed allylicoxidation of cyclicolefins. Catalytic activity and enantioselectivity were found to be highly dependent upon the framework