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1,1'-Bi-2-naphthol

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1,1'-Bi-2-naphthol Basic information

Product Name:
1,1'-Bi-2-naphthol
Synonyms:
  • AURORA KA-7212
  • BI-2-NAPHTHOL
  • DI-B-NAPHTHOL
  • (R)-(+)-1,1'-BI(2,2'-NAPHTHOL)
  • (+/-)-1,1A-Bi-2-naphthol
  • (+/-)-Binaphthalene-2,2-diol
  • (+/-)-BINOL
  • (+/-)-1,1'-BINAPHTHALENE-2,2'-DIOL
CAS:
602-09-5
MF:
C20H14O2
MW:
286.32
EINECS:
210-014-0
Product Categories:
  • Naphthalene derivatives
  • Aromatic Hydrocarbons (substituted) & Derivatives
  • Intermediates of Dyes and Pigments
  • API intermediates
  • Miscellaneous
Mol File:
602-09-5.mol
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1,1'-Bi-2-naphthol Chemical Properties

Melting point:
215-218 °C
Boiling point:
388.69°C (rough estimate)
Density 
1g/cm
refractive index 
1.7580 (estimate)
storage temp. 
Inert atmosphere,Room Temperature
solubility 
dioxane: 50 mg/mL, clear
pka
8.29±0.50(Predicted)
form 
Powder
color 
White to beige
Water Solubility 
insoluble
Merck 
14,1226
BRN 
997518
InChIKey
PPTXVXKCQZKFBN-UHFFFAOYSA-N
CAS DataBase Reference
602-09-5(CAS DataBase Reference)
NIST Chemistry Reference
1,1'-Bi-2-naphthol(602-09-5)
EPA Substance Registry System
[1,1'-Binaphthalene]-2,2'-diol (602-09-5)
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Safety Information

Hazard Codes 
T,Xi
Risk Statements 
25-36-36/37/38
Safety Statements 
26-45-37/39-36
RIDADR 
UN 2811 6.1/PG 3
WGK Germany 
3
RTECS 
DU3106100
10
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
HS Code 
29072900
Toxicity
LDLo orl-mus: 42 mg/kg AECTCV 14,111,85

MSDS

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1,1'-Bi-2-naphthol Usage And Synthesis

Chemical Properties

white to beige powder

Uses

1,1'-Bi-2-naphthol is used as a chiral ligand in alkynylation, Diels-Alder and assymmetric Michael addition reactions.

Synthesis Reference(s)

Tetrahedron, 48, p. 9483, 1992 DOI: 10.1016/S0040-4020(01)88316-2
Tetrahedron Letters, 24, p. 3261, 1983 DOI: 10.1016/S0040-4039(00)88151-4

Safety Profile

Poison by ingestion. When heatedto decomposition it emits acrid smoke and irritatingvapors.

Purification Methods

Crystallise the binaphthol from toluene or *benzene (10mL/g). When crystallised from chlorobenzene it has m 238o. Its solubility in dioxane is 5%. [Beilstein 6 IV 7020.]

1,1'-Bi-2-naphthol Preparation Products And Raw materials

Preparation Products

1,1'-Bi-2-naphtholSupplier

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