| Literature DB >> 15704912 |
Abstract
The enantioselective allylic amination of acyclic allylic carbonates catalyzed by a palladium/(S)-BINAP(S) system was investigated. Amination of several substrates proceeded with high ee. Crotyl carbonates show an unusually high regioselectivity for the branched isomer. The use of (S)-TolBINAP(S) and (S)-3,5-xylyl-BINAP(S) as ligands was found to increase the enantioselectivity of the aminations. A P,S binding mode of the BINAP(S) ligand was found in an X-ray crystallographic study. [reaction: see text]Entities:
Year: 2005 PMID: 15704912 DOI: 10.1021/ol047624k
Source DB: PubMed Journal: Org Lett ISSN: 1523-7052 Impact factor: 6.005