2,4,6-Triphenylpyridine as a neutral leaving group in the palladium(0)-catalyzed allylation of nucleophiles
作者:M. Moreno-Mañas、L. Mortal、R. Pleixats
DOI:10.1002/jhet.5570340136
日期:1997.1
Palladium(0)-catalyzedallylation of nucleophiles such as morpholine, sodium dimethyl malonate and 2,6-dimethylaniline can be achieved under very mild conditions using N-allyl-2,4,6-triphenylpyridinium tetrafluoroborates as allylating reagents in reactions in which 2,4,6-triphenylpyridine acts as the neutral leaving group.
efficient bench-stable catalysts for the oligomerization of ethylenes. Herein, their further application was developed in the catalytic transformation of N,N-diallylanilines to pyrrolidines through a cycloisomerization process. In this protocol, chlorobenzene is a vital additive to promote reaction efficiency. Cobalt catalysts bearing 2-imino-1,10-phenanthroline ligands are quite efficient bench-stable catalysts