Diastereoselectively switchable enantioselective trapping of carbamate ammonium ylides with imines was written by Jiang, Jun;Xu, Hua-Dong;Xi, Jian-Bei;Ren, Bai-Yan;Lv, Feng-Ping;Guo, Xin;Jiang, Li-Qin;Zhang, Zhi-Yong;Hu, Wen-Hao. And the article was included in Journal of the American Chemical Society in 2011.Computed Properties of C48H29O4P This article mentions the following:
The diastereoselectively switchable enantioselective trapping of protic carbamate ammonium ylides with imines is reported. The intriguing Rh2(OAc)4 and chiral Bronsted acid cocatalyzed three-component Mannich-type reaction of a diazo compound, a carbamate, and an imine provides rapid and efficient access to both syn- and anti-α-substituted α,β-diamino acid derivatives e. g., I and II with a high level control of chemo-, diastereo-, and enantioselectivity. In the experiment, the researchers used many compounds, for example, (11bS)-4-Hydroxy-2,6-di(phenanthren-9-yl)dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine 4-oxide (cas: 1043567-32-3Computed Properties of C48H29O4P).
(11bS)-4-Hydroxy-2,6-di(phenanthren-9-yl)dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine 4-oxide (cas: 1043567-32-3) belongs to chiral phosphine ligands. During the past two decades, tertiary phosphine catalysts have been applied extensively in a wide range of carbon–carbon and carbon–heteroatom bond-forming transformations. Asymmetric catalytic performance is determined not only by the metal center but also by the chiral ligand selected.Computed Properties of C48H29O4P
Referemce:
Phosphine ligand,
Chiral phosphines in nucleophilic organocatalysis