Romanov-Michailidis, Fedor published the artcileEnantioselective halogenative semi-pinacol rearrangement: a stereodivergent reaction on a racemic mixture, Safety of R-3,3′-Bis(2,4,6-triisopropylphenyl)-5,5′,6,6′,7,7′,8,8′-octahydro-1,1′-binaphthyl-2,2′-diyl hydrogenphosphate, the publication is Chemical Communications (Cambridge, United Kingdom) (2014), 50(88), 13461-13464, database is CAplus and MEDLINE.
An efficient, quant. deracemization strategy for optically inactive allylic cycloalkanols, e.g. I, has been achieved using the biphasic halogenative semi-pinacol reaction protocol. The resultant β-halo spiroketones, containing three contiguous stereogenic centers, e.g. II, were easily recovered with high diastereomeric and enantiomeric purities following conventional silica gel chromatog. The optically active products could be further manipulated chem., affording synthetically interesting scaffolds with complete preservation of stereoisomeric integrity.
Chemical Communications (Cambridge, United Kingdom) published new progress about 929294-27-9. 929294-27-9 belongs to chiral-phosphine-ligands, auxiliary class Chiral Phosphoric Acids, name is R-3,3′-Bis(2,4,6-triisopropylphenyl)-5,5′,6,6′,7,7′,8,8′-octahydro-1,1′-binaphthyl-2,2′-diyl hydrogenphosphate, and the molecular formula is C50H65O4P, Safety of R-3,3′-Bis(2,4,6-triisopropylphenyl)-5,5′,6,6′,7,7′,8,8′-octahydro-1,1′-binaphthyl-2,2′-diyl hydrogenphosphate.
Referemce:
https://en.wikipedia.org/wiki/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