246948 Aldrich



Synonym: (+)-2,2′-Dihydroxy-1,1′-dinaphthyl, (R)-(+)-1,1′-Binaphthalene-2,2′-diol, (R)-BINOL


Related Categories Asymmetric Synthesis, BINOLs, Chemical Synthesis, Chiral Catalysts, Ligands, and Reagents, Privileged Ligands and Complexes More...
assay   99%
optical activity   [α]21/D +34°, c = 1 in THF
optical purity   ee: 99% (HPLC)
mp   208-210 °C(lit.)



1, 5 g in glass bottle

10 g in poly bottle


A chiral auxiliary used in the catalytic asymmetric oxidation of sulfides to sulfoxides.1 Chiral lanthanide triflates formed from binaphthol serve as catalysts for asymmetric Diels-Alder reactions.2,3 Derivatives of binaphthol have recently found use in asymmetric Claisen rearrangements4 and asymmetric epoxidations.5 The lithium aluminum hydride derivative of these diols (BINAP-H) has been used extensively for the reduction of ketones.6

Chiral binapthol imminium salt precursor. Salts were used for an asymmetric epoxidation of olefins.

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