Ficks, Arne published the artcileEfficient multigram syntheses of air-stable, chiral primary phosphine ligand precursors via palladium-catalyzed phosphonylation of aryltriflates, Recommanded Product: (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate), the publication is Synthesis (2013), 45(2), 265-271, database is CAplus.
Aryl monotriflates, derived from (R)-BINOL, were alkylated or reduced to give 2′-alkoxy-1,1′-binaphthyl 2-triflates and 1,1′-binaphthyl 2-triflates, resp., which were phosphonylated with HP(O)(OEt)2 and reduced to the corresponding primary arylphosphines by reaction with LiAlH4/Me3SiCl. The prepared 1,1′-binaphthalen-2-ylphosphines are air-stable, chiral primary phosphines, being produced on a multigram scale. The key synthetic step is an optimized palladium-catalyzed phosphonylation reaction of aryl triflates, which opens up a valuable synthetic route to a chiral scaffold that is easily derivatized into novel phosphines.
Synthesis 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, Recommanded Product: (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate).
Referemce:
https://en.wikipedia.org/wiki/Ester,
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