(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. Generally, the efficiency of nucleophilic phosphine catalysis often depends on the nature of the tertiary phosphine. Asymmetric catalytic performance is determined not only by the metal center but also by the chiral ligand selected.HPLC of Formula: 252288-04-3
CpCo(I) precatalysts for [2 + 2 + 2] cycloaddition reactions: synthesis and reactivity was written by Fischer, Fabian;Pientka, Tobias;Jiao, Haijun;Spannenberg, Anke;Hapke, Marko. And the article was included in Catalysis Science & Technology in 2020.HPLC of Formula: 252288-04-3 This article mentions the following:
The efficient synthesis and structural characterization of a series of novel CpCo(I)-olefin-phosphite/phosphoramidite complexes and their evaluation in catalytic cyclotrimerization reactions are reported. The protocol for precatalyst synthesis is widely applicable to different P-containing ligands, especially phosphites and phosphoramidites, as well as acyclic and cyclic olefins. A selection of the prepared complexes was investigated towards their catalytic performance in [2 + 2 + 2] cycloaddition reactions of diynes and nitriles, as well as triynes. While revealing significant differences in reactivity, the most reactive precatalysts work even already at 75°. One of these precatalysts also proved its potential in exemplary (co)cyclotrimerizations towards functionalized pyridines and benzenes. The energetics of complex formation and exemplary ligand exchange with a substrate diyne were elucidated by theor. calculations and compared with the catalytic reactivity. 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. Generally, the efficiency of nucleophilic phosphine catalysis often depends on the nature of the tertiary phosphine. Asymmetric catalytic performance is determined not only by the metal center but also by the chiral ligand selected.HPLC of Formula: 252288-04-3
Referemce:
Phosphine ligand,
Chiral phosphines in nucleophilic organocatalysis