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Structure

(R)-(+)-1,1'-Bi-2-naphthol 18531-94-7

(R)-(+)-1,1'-Bi-2-naphthol 18531-94-7

Specifications

  • Catalogue No.: 14134
  • Product Name: (R)-(+)-1,1'-Bi-2-naphthol
  • Synonyms: (R)-(+)-2,2'-Dihydroxy-1,1'-binaphthyl
  • CAS: 18531-94-7
  • MDL: MFCD00004068
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  • Price: $1900/5kg
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Properties

Assay: 98%
Appearance: white crystalline powder
Melting point: 208-211℃
Optical rotation: [a]D22 +34±0.5º (C=1, in THF)

(R)-(+)-1,1'-Bi-2-naphthol 18531-94-7 is a chiral binapthol imminium salt precursor used in the catalytic asymmetric oxidation of sulfides to sulfoxides. Chiral lanthanide triflates formed from binaphthol serve as catalysts for asymmetric Diels-Alder reactions. Derivatives of binaphthol have recently been used in asymmetric Claisen rearrangements and asymmetric epoxidations. The lithium aluminum hydride derivative of these diols (BINAP-H) has been used extensively for the reduction of ketones.

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