Araki, Tatsuya; Hojo, Daiki; Noguchi, Keiichi; Tanaka, Ken published the artcile< Enantioselective synthesis of planar chiral paracyclophanes with short ansa chains and structure of strained dioxa[7]paracyclophane>, Recommanded Product: (S)-(-)-2,2′-Bis(diphenylphosphino)-5,5′,6,6′,7,7′,8,8′-octahydro-1,1′-binaphthyl, the main research area is paracyclophane planar chiral stereoselective preparation.
The enantioselective synthesis of planar chiral [7] and [8]paracyclophanes has been achieved by the cationic rhodium(I)-(S)-H8-BINAP complex catalyzed [2+2+2] cycloaddition Planar chiral [9]paracyclophanes were also synthesized by the same method. The X-ray crystallog. anal. of the strained dioxa[7]paracyclophane revealed the significant deformation of the benzene ring from planarity.
Synlett published new progress about Enantioselective synthesis. 139139-93-8 belongs to class chiral-phosphine-ligands, and the molecular formula is C44H40P2, Recommanded Product: (S)-(-)-2,2′-Bis(diphenylphosphino)-5,5′,6,6′,7,7′,8,8′-octahydro-1,1′-binaphthyl.
Referemce:
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate