Rafter, Eoin published the artcileSynthesis of P-stereogenic BINAP bissulfide analogues, Application of (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate), the publication is Tetrahedron: Asymmetry (2011), 22(16-17), 1680-1686, database is CAplus.
BINAP disulfide analogs (1R)-C20H12-2-P(S)Ph2-2′-P(S)R1R2 (11–15, R1, R2: Me, Ph; 2-MeOC6H4, Ph; 2-MeC6H4, Ph; 2-MeOC6H4, 2-MeOC6H4; 2-MeC6H4, 2-MeC6H4), containing stereogenic phosphorus center, were prepared by phosphination of 2,2′-BINOL ditriflate with HPPh2, HPR1R3 and phosphine oxides with subsequent sulfuration. The synthesis of these ligands was achieved by step-wise palladium and nickel-catalyzed coupling reactions of the precursor binaphthyl triflate with secondary phosphines and phosphine oxides, resp. C2-Unsym. BINAP bissulfide analogs with the same aryl substituents were also synthesized for the sake of comparison. Preliminary studies of the reduction of these sulfides to the free phosphines are also described.
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 C22H12F6O6S2, Application of (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate).
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