Trost, Barry M. et al. published their research in Chemistry – A European Journal in 2010 | CAS: 174810-09-4

N,N’-((1R,2R)-Cyclohexane-1,2-diyl)bis(2-(diphenylphosphino)-1-naphthamide) (cas: 174810-09-4) belongs to chiral phosphine ligands. Generally, the efficiency of nucleophilic phosphine catalysis often depends on the nature of the tertiary phosphine. Most of these phosphines are acyclic, usually possess low nucleophilic activity, and generally display poor enantioselectivities for phosphine organocatalysis. Computed Properties of C52H44N2O2P2

Cyclic 1,2-Diketones as Core Building Blocks: A Strategy for the Total Synthesis of (-)-Terpestacin was written by Trost, Barry M.;Dong, Guangbin;Vance, Jennifer A.. And the article was included in Chemistry – A European Journal in 2010.Computed Properties of C52H44N2O2P2 This article mentions the following:

The sesterterpene (-)-terpestacin I is prepared using the stereoselective and enantioselective O-alkylation of diosphenols with allylic epoxides in the presence of a nonracemic diphosphine palladium catalyst and the subsequent stereoselective Claisen rearrangement to a nonracemic diosphenol with a quaternary stereocenter as the key steps. For example, reaction of 2-hydroxy-3-methyl-2-cyclopenten-1-one with 2-vinyl-2-methyloxirane (isoprene oxide) in the presence of tris(dibenzylideneacetone)dipalladium chloroform solvate and nonracemic Trost ligand II and tetrabutylammonium chloride followed by silylation yields the nonracemic tertiary allylic enol ether III (TIPS = triisopropylsilyl) in 93-95% yield and 88-96% ee; thermal rearrangement of III in chloroform (with adventitious HCl presumably as a catalyst) yields the substituted nonracemic diosphenol IV in 82-93% yield with 4-5:1 E:Z stereoselectivity. The palladium-catalyzed asym. allylic alkylation reaction of an allylic carbonate is used to generate the pendant hydroxypropyl moiety of I. Using this methodol., I is prepared in 20 steps (longest linear sequence) from com. available 2-hydroxy-3-methyl-2-cyclopenten-1-one. In the experiment, the researchers used many compounds, for example, N,N’-((1R,2R)-Cyclohexane-1,2-diyl)bis(2-(diphenylphosphino)-1-naphthamide) (cas: 174810-09-4Computed Properties of C52H44N2O2P2).

N,N’-((1R,2R)-Cyclohexane-1,2-diyl)bis(2-(diphenylphosphino)-1-naphthamide) (cas: 174810-09-4) belongs to chiral phosphine ligands. Generally, the efficiency of nucleophilic phosphine catalysis often depends on the nature of the tertiary phosphine. Most of these phosphines are acyclic, usually possess low nucleophilic activity, and generally display poor enantioselectivities for phosphine organocatalysis. Computed Properties of C52H44N2O2P2

Referemce:
Phosphine ligand,
Chiral phosphines in nucleophilic organocatalysis