Kang, Soyeong et al. published their research in Chemistry – A European Journal in 2014 | CAS: 174810-09-4

Access to trans-3,4-Dihydroxy-2-alkylpyrrolidines and Piperidines by Use of Stereodefined Cyclic N,O-Acetals as a Diversity-Generating Element was written by Kang, Soyeong;Kim, Dong-gil;Rhee, Young Ho. And the article was included in Chemistry – A European Journal in 2014.Quality Control of N,N’-((1R,2R)-Cyclohexane-1,2-diyl)bis(2-(diphenylphosphino)-1-naphthamide) This article mentions the following:

A highly efficient and stereoselective synthetic pathway towards trans-3,4-dihydroxy-2-alkylpyrrolidines and piperidines I (n = 1, 2; A = CO, C(C₂H₅)₂; R = CH₂COPh, CH₂CCH, CN, etc.) is described. The nature of the protecting groups on the hydroxyl moieties played a crucial role on the trans selectivity. By using this method, a concise total synthesis of (-)-2-epilentiginosine has been achieved. In the experiment, the researchers used many compounds, for example, N,N’-((1R,2R)-Cyclohexane-1,2-diyl)bis(2-(diphenylphosphino)-1-naphthamide) (cas: 174810-09-4Quality Control of N,N’-((1R,2R)-Cyclohexane-1,2-diyl)bis(2-(diphenylphosphino)-1-naphthamide)).

N,N’-((1R,2R)-Cyclohexane-1,2-diyl)bis(2-(diphenylphosphino)-1-naphthamide) (cas: 174810-09-4) belongs to chiral phosphine ligands. Although many reactions require more nucleophilic trialkylphosphines as catalysts, only a few chiral trialkylphosphines are available. Asymmetric catalytic performance is determined not only by the metal center but also by the chiral ligand selected.Quality Control of N,N’-((1R,2R)-Cyclohexane-1,2-diyl)bis(2-(diphenylphosphino)-1-naphthamide)

Referemce:
Phosphine ligand,
Chiral phosphines in nucleophilic organocatalysis