Asymmetric Pauson-Khand reaction with chiral, electron-deficient mono- and bis-phosphine ligands was written by Konya, Denes;Robert, Frederic;Gimbert, Yves;Greene, Andrew E.. And the article was included in Tetrahedron Letters in 2004.HPLC of Formula: 252288-04-3 This article mentions the following:
The intermol. Pauson-Khand reaction between norbornene and dicobalt carbonyl complexes of phenylacetylene substituted with chiral phosphorus ligands has been investigated. I was obtained in high yield and good enantiomeric excess. In the experiment, the researchers used many compounds, for example, (11bS)-N,N-Diethyldinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine (cas: 252288-04-3HPLC of Formula: 252288-04-3).
(11bS)-N,N-Diethyldinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine (cas: 252288-04-3) belongs to chiral phosphine ligands. Although many reactions require more nucleophilic trialkylphosphines as catalysts, only a few chiral trialkylphosphines are available. Over the last decade, however, and especially since 2005, considerable progress has been made in asymmetric phosphine catalysis.HPLC of Formula: 252288-04-3
Referemce:
Phosphine ligand,
Chiral phosphines in nucleophilic organocatalysis