Towards a Zinc-Catalyzed Asymmetric Hydrogenation/Transfer Hydrogenation of Imines was written by Werkmeister, Svenja;Fleischer, Steffen;Junge, Kathrin;Beller, Matthias. And the article was included in Chemistry – An Asian Journal in 2012.Related Products of 252288-04-3 This article mentions the following:
The first asym. hydrogenation/transfer hydrogenation of imines to amines using zinc(II) triflate in combination with chiral ligands is described. The monodentate binaphthophosphepine ligand provided the highest enantioselectivities. Using different imines, the corresponding amines were obtained in moderate yields and enantioselectivities. 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: 252288-04-3Related Products of 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. Many phosphine-catalyzed reactions have been developed for the syntheses of various biologically important acyclic and cyclic molecules. Asymmetric variants of these reactions have evolved relatively slowly. Chiral phosphine catalysts: Nucleophilic phosphine catalysis often involves the formation of Lewis adducts, namely phosphonium (di)enolate zwitterions, as reaction intermediates.Related Products of 252288-04-3
Referemce:
Phosphine ligand,
Chiral phosphines in nucleophilic organocatalysis