Synthesis and Application of Chiral Phosphino-Imidazoline Ligands: Ir-Catalyzed Enantioselective Hydrogenation

1 December 2002

journal article
Published by American Chemical Society (ACS) in Organic Letters

Vol. 4 (26) , 4713-4716
https://doi.org/10.1021/ol027253c

Abstract

[reaction: see text] A series of chiral phosphino-imidazolines (PHIM ligands) 1a-j with different substituents at the stereogenic center, the nitrogen atom of the imidazoline ring, and at the phosphorus atom were synthesized. Iridium complexes derived from these ligands have been evaluated as catalysts for the enantioselective hydrogenation of unfunctionalized olefins. In several cases, higher enantiomeric excesses were observed than with analogous phosphino-oxazoline ligands.

Keywords

This publication has 7 references indexed in Scilit:

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