Warner, Christopher J. A. published the artcileEvaluation of bifunctional chiral phosphine oxide catalysts for the asymmetric hydrosilylation of ketimines, Name: (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate), the publication is Tetrahedron (2019), 75(50), 130733, database is CAplus.
A series of hydroxy-functionalized bifunctional phosphine oxides and diphosphine dioxides have been prepared and evaluated as catalysts for the trichlorosilane mediated asym. hydrosilylation of ketimines. Bis-Phosphine oxides, hydroxy-phosphine oxides, and biaryl phosphine oxides all demonstrated good catalytic activity, but poor to moderate enantioselectivity. A bis-P-chiral phosphine oxide (R,R)-Ph(2-MeOC6H4)P(CH2)6PPh(2-MeOC6H4) (32) displayed the highest enantioselectivity of 60%.
Tetrahedron 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 C13H14N2O, Name: (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate).
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