(R)-BINOL

(R)-(+)-1,1'-Bi-2-naphthol
CAS Number
18531-94-7
PubChem
Molecular Formula
C20H14O2
Molecular Weight
286.32 g/mol
Chiral Ligands Catalysts
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(R)-BINOL is the enantiomeric form of (S)-BINOL, providing the mirror-image chiral environment required for opposite enantioselectivity in metal-catalyzed and organocatalytic transformations. It is a foundational ligand in modern asymmetric synthesis.

Applications

  • Asymmetric Diels-Alder reactions
  • Enantioselective alkylation of aldehydes
  • Chiral phosphoric acid catalysts
  • Asymmetric reductions with BINAL-H

Specifications

Property Value
CAS 18531-94-7
Molecular Formula C20H14O2
Molecular Weight 286.32 g/mol
Purity >99.5%
Optical Rotation [α]D +34° (c 1, THF)

Features

  • Mirror-image chirality to (S)-BINOL
  • Versatile precursor for numerous catalysts
  • Stable across diverse reaction conditions
  • Industrially available at scale

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