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BINAP is an acronym used for 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl, an important compound used in chiral synthesis. It is a chiral ligand for hydrogenation catalysts based on ruthenium or rhodium, pioneered by Ryoji Noyori, winner of the 2001 Nobel Prize for Chemistry. Both the R and S enantiomers are commercially available. BINAP is prepared from BINOL (1,1'-bi-2-naphthol) via the bis-triflate.
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