Zhang, Wen published the artcileAxially chiral P,S-heterodonor ligands with a binaphthalene framework for palladium-catalyzed asymmetric allylic substitutions: experimental investigation on the reversal of enantioselectivity between different alkyl groups on sulfur atom, Recommanded Product: (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate), the publication is Tetrahedron: Asymmetry (2004), 15(21), 3467-3476, database is CAplus.
The enantioselectivity in the palladium-catalyzed asym. allylic alkylation of 1,3-diphenylpropenyl acetate with di-Me malonate using axially chiral P,S-heterodonor ligands BINAPS with different alkyl groups on sulfur atom has been investigated. Their bidentate coordination patterns to a Pd metal center with both P and S atoms have been unambiguously disclosed by X-ray diffraction. The reaction mechanism and the investigation on the reversal of enantioselectivity between different alkyl groups on sulfur atom have been discussed on the basis of the X-ray crystal structure and NMR spectroscopic data.
Tetrahedron: Asymmetry published new progress about 126613-06-7. 126613-06-7 belongs to esters-buliding-blocks, auxiliary class Chiral Diphenols, name is (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate), and the molecular formula is C8H7ClO3, Recommanded Product: (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate).
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics