Liu, Lei published the artcileImproved Syntheses of Phosphine Ligands by Direct Coupling of Diarylbromophosphine with Organometallic Reagents, Safety of (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate), the publication is Chemistry – A European Journal (2011), 17(39), 10828-10831, S10828/1-S10828/21, database is CAplus and MEDLINE.
Authors have discovered that diarylbromophosphine is much more effective than diarylchlorophosphine and can be used to directly couple with binaphthylmagnesium bromide to afford BINAP derivatives Diarylbromophosphines can also be employed in the nickel-catalyzed coupling reaction with BINOL triflate, giving better yields than their chloro counterparts, especially for the syntheses of electron-deficient phosphine ligands. Finally, authors have applied this strategy to prepare several Buchwald’s dialkylbiarylphosphine ligands with improved yields.
Chemistry – A European Journal 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, Safety of (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate).
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