Reference of 18531-99-2, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.18531-99-2, Name is (S)-[1,1′-Binaphthalene]-2,2′-diol, molecular formula is C20H14O2. In a Article，once mentioned of 18531-99-2
Diastereomers of 2,2?-bis[4,6-dimethyl-1,3,2-dioxaphosphorinan-2-yloxy]-1,1?- binaphthyl, R-bis(4R,6R)-1, and S-bis(4R,6R)-2, have been synthesized. The solid state structure of S-bis(4S,6S)-1 and the platinum complex [PtCl2(1)] (3) of its enantiomer pair have been determined. The structure of 3 shows a slightly distorted square-planar geometry. The dihedral angle defined by the naphthyl rings in 3 is smaller (77.6(2)) than in the free ligand (103.0(2)). In the platinum- and rhodium-catalyzed asymmetric hydroformylation of styrene, the axial chirality in the bridge has been found to be determinate for the product configuration with a cooperative effect from the terminal groups. The maximum enantioselectivity (39% ee) and a remarkable high regioselectivity (84%) towards branched aldehyde was obtained with platinum system of a matched constellation of the ligand (S-bis(4R,6R)-2).
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Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI