This was true in all cases examined. This is highly significant, as the lack of enantioenrichment of 26 precludes it being an intermediate in route to enantioenriched 5 (via N–OPh bond reduction) and is further evidence for the aza-Heck cyclization being distinct from aza-Wacker pathways.
← all excerpts
Asymmetric Synthesis of Quaternary Hydantoins via a Palladium-Catalyzed Aza-Heck Cyclization.
1
—
—